“FORthe love of Mike!” cried Bob Holton. “Whatever happened?”
“Plenty!” came from Joe quietly. “We had a fight.”
“A fight?” Mr. Wallace was perplexed.
“Yes, and a big one at that,” said Karl grimly. “But we licked them.”
“Licked whom?” demanded Bob, becoming impatient. “Come on. Tell us about it.”
Mr. Holton got to his feet.
“Look over there,” he directed, pointing to a spot near the tail of the monoplane.
Bob and Mr. Wallace looked.
Lying prone on the ground was a man, a native Colombian, evidently still dazed from a blow. He made not the slightest move, although it was apparent that he was not hurt seriously.
“Karl knocked that fellow out,” explained Bob’sfather. “In addition to being a fine aviator, that fellow’s a fighter.”
Bob glanced at Karl. From the start the youth had believed the aviator could give a good account of himself if called upon.
“But that’s not telling us anything,” said Mr. Wallace. “What caused the fight? How did it all come about?”
“This way,” began Mr. Holton. “Joe and Karl and I were sitting in the cabin of the ’plane discussing the expedition when we were suddenly interrupted by a gang of at least five rough men, who rushed at the ’plane angrily. We didn’t know what their object in attacking us was, and never did find out. Perhaps they wanted to steal what we have, or they might have been in that crowd yesterday when we laughed and they thought we were making fun of them. At any rate they came at us furiously, and one man broke out the glass in a window. We got out of the airplane as soon as we could to defend ourselves. We couldn’t get to our guns because they’re in a nailed box. But we used our fists to good advantage and finally were able to beat them off. All got away but that fellow over there.”
“Well, of all things!” exclaimed Mr. Wallace. “Seems like we’re having trouble and then more trouble. Bob and I had an experience on the trainthat wasn’t very pleasing,” he said, and then told of the robbery in which he had lost a valuable watch.
“We’ll soon be out of this country, I hope,” sighed Joe. “Though I suppose it isn’t the country so much as it is our stroke of bad luck.”
“No,” agreed Bob. “Anyone——”
He stopped quickly, as he observed that the Colombian who had been knocked out was regaining consciousness. At first the man merely stirred about, as if totally unaware of what had happened. Then he glanced up and got to his feet.
Pausing but a moment to glare at the Americans, the man dashed away in the direction of the town, drawing his teeth back in a wicked snarl as he looked back at them one last time.
“I think we’d better get away from here as quickly as we can,” said Mr. Holton. “For all we know there may be another gang getting ready to attack us. The whole town might even come out.”
His remark served to set Karl Sutman to action.
“Let’s get the gas in the tank,” he suggested, walking over to the can that Bob and Mr. Wallace had brought filled from the city on the coast.
Together, Joe and the aviator lifted the heavy can up and poured out its contents. Then, after making the cap secure, Karl climbed in the cockpit and switched on the engine.
“This will take us from fifty to seventy miles—maybe farther, depending on how fast we fly,” he told the others, as they entered the cabin and snapped the door shut.
As they left the ground, Joe noticed that they were heading west. He wondered what was the meaning of this, since Bogotá, which was south, was their goal.
“I’m going to find out,” he thought, and, stepping over to the transmitter, he put the question to Karl.
“I decided all at once to go over to that coast city—Cartagena,” the aviator answered. “There we can fill both our tanks to capacity and won’t have to worry any more. Otherwise, if we merely used the gas that Bob and Mr. Wallace brought, we might find it necessary to hunt up another town that has gasoline.”
“You think of everything,” praised Bob’s father, moving up to the transmitter.
“I’ve decided to make another change, too,” Karl said with a laugh. “I think it might be best to miss Bogotá by a hundred miles and head at once for Lima, the capital of Peru. We can stop at Quito, the capital of Ecuador, for more gas, and then continue on to Lima. Here we’ll again land to fill our tanks. After that we’ll go on to—well, perhaps to Cuzco, if we want to look arounda little before Mr. Lewis gets here by steamship. How does it sound?”
“O. K.,” said Bob quickly, and then, with a sudden thought, added: “How about the tank that leaks? Can we have it repaired in Cartagena?”
“Yes. That is, I’d think so. Why didn’t you and Mr. Wallace find out while you were there?”
“Upon my word, I never thought of it,” confessed the naturalist sheepishly. “And I’m sure Bob didn’t. But we could easily have inquired. After seeing the city, I’m inclined to think the tank can be repaired there.”
They found a little later that Mr. Wallace was right. At the first garage they entered, they were informed that the tank could be repaired.
It was necessary, however, for the garage man to take his welding outfit over to the monoplane, which was in a field quite a distance away. For this he explained he would be compelled to make an additional charge, but the others, knowing there was no other way out, did not object.
When the tank was mended and had cooled an hour or so, it was filled to capacity with gasoline. The spare was also filled, and then the explorers were ready to resume their journey.
A little crowd of people had assembled to see the monoplane off. They waved a friendly farewell as it soared high into the sky.
“Now I wonder if we’ll have any more trouble,” mused Bob. “Or will we have good luck and get to the Andes without much delay?”
Across jungle, plains, and hills they flew for well over an hour. Then they caught sight of something in the distance that thrilled them with delight.
“The Andes!” cried Joe joyfully. “At last we’ve seen the Andes Mountains!”
“I believe you’re right,” affirmed Mr. Wallace, straining his eyes to make out more clearly the series of distant bumps that were mountains.
As the explorers flew nearer, they could easily observe the high peaks and narrow valleys. At one time they flew directly over a short range of exceedingly lofty mountains.
The monoplane passed farther, and the towering slopes of the Andes became more prominent. They looked dark and forbidding, yet beautiful and romantic.
“It’s going to be dark before long,” said Karl, breaking the fascinating silence. “And as it isn’t wise to keep going over unknown territory, I’m going to land—if I can find a place.”
Picking out a level spot was very difficult, but finally Karl caught sight of a flat plateau stretching several hundred yards ahead. He brought the machine down as best he could, taking into considerationthe difficulty of landing at high altitudes.
They did not pitch the tent that night, but curled up inside the cabin, too tired to use much more energy. By doing this they could lock the doors and spend the night in comparative safety. Otherwise, it would have been necessary to set a guard.
A heavy slumber overtook them and held them firmly until late next morning.
“Now to head for Ecuador,” said Joe, becoming impatient. “How long will it take us—to get to Quito, I mean?” he asked Karl.
“Let’s see. We’ve been about an hour out of Cartagena.” Karl pondered for a minute. “There’ll be about six more hours of air traveling before we get there. That is, if nothing happens.”
But nothing hindered their flight, and after a thrilling ride over fascinating country the explorers came to Quito, at the very rim of the lofty peaks. Karl finally was able to bring the airplane safely down at the edge of the city. He switched off the engine, and, with the others, turned to glimpse the surrounding mountains.
On all sides were the magnificent heights of the mighty Andes, reaching thousands of feet above the city. Quito itself was built in a wide valley, nearly eleven thousand feet above sea level.
All during the last hour, as they had soared steadily upward, Joe had had a strange feeling of nausea, which grew still worse after they had landed at Quito. Now, when they were about to make their way into the city, Joe slumped down on the ground beside the monoplane.
“I’m sick!” he moaned helplessly. “Guess I can’t go with you now.”
“SICK?”cried Bob anxiously. “What seems to be the trouble?” He and Mr. Holton had moved over to Joe.
“Got a terrible headache. Feel bad all over. My—my stomach doesn’t seem right.”
Almost at once the two naturalists grasped the meaning of Joe’s misfortune.
“There’s no doubt about it,” began Mr. Wallace, who was himself becoming pale. “You have mountain sickness, orsoroche, as it’s called. I think I have a touch of it myself.”
“What causes it?” queried Bob.
“The high altitude,” Mr. Holton answered. “You see, when one makes a sudden change to nearly eleven thousand feet, it is a great strain on him. Usually, though, it doesn’t show up until reaching a much higher altitude than this. I’m surprised that Joe has it so soon.”
Joe did not become worse, but grew no better.One thing was apparent: until he would show improvement, he could not continue the journey.
Mr. Holton and Bob helped him into the cabin of the airplane, where an improvised bed was made.
“If it’s all right, I think I’ll stay with him,” announced Mr. Wallace. “I’m not feeling any too well myself, and then, too, Joe ought to have someone here with him.”
“All right,” said Karl. “Meanwhile the rest of us will go on into the city and have some gasoline sent out to the ’plane.”
In Quito the others found a filling station, the operator of which agreed to send out a truck to the monoplane to fill the tanks.
Back at the field they found that Joe had greatly improved and was anxious to fly on to Lima. It was evident that he had had only a slight attack.
In a short time the gasoline truck arrived, the tanks were replenished, and the explorers again climbed into the monoplane.
The journey to Lima promised to be more dangerous, as there were hazardous stretches of country to be left behind. But all knew that Karl was a skillful pilot. If he had not been he could not have brought them safely out of the terrible storm that they had encountered over the Caribbean.
Mountains, valleys, towns, then more mountains were spread before them as they flew on their way to the “City of the Kings.” The rugged Andes were more impressive than Bob and Joe had imagined.
At last they caught sight of Lima in the distance and before long were hovering over it.
Karl singled out Faucett’s Field and brought the monoplane down at high speed in order to avert a catastrophe. Well he knew that landing at such an altitude would present a difficulty, even at best.
“Can hardly feel the wheels touch the ground,” remarked Bob. “Wonder how Karl knows he’s made a landing?”
They were rolling swiftly over the smooth ground when suddenly Mr. Holton cried out in fright and pointed ahead at another airplane, which was landing directly in their path.
“Look out!” he warned Karl, speaking hoarsely through the transmitter.
Karl Sutman had already seen the danger and was cutting the monoplane to one side as best he could.
He was too late, however. The other airplane came on at sickening speed, heading directly at the explorers. The wings of the two crafts touched, and the monoplane sent the other machine, which was much lighter, spinning around dangerously.
Its lower wing scraped the ground, and a support was broken. A moment later it came to a stop, leaning on its side.
Meanwhile, Karl’s monoplane had continued farther, gradually losing speed until it came to a standstill several hundred feet away from the other airplane.
“A narrow escape!” breathed Joe, as he opened the door of the cabin and stepped out. “A little more and we would have been goners.”
“That crazy guy ought to have his face smashed!” snarled Karl, directing his glance at the distant airplane. “He broke one of the prime rules of flying: Never land when there is another ’plane on the field.”
“Here he comes now,” observed Bob. “Wonder what’s on his mind?”
They soon found out. The other aviator was a native Peruvian and could not speak English, but he addressed them angrily in the native language.
Karl stepped boldly up to the man. His fist shot out and caught the native squarely between the eyes.
The man reeled and then lost his balance, falling heavily to the ground.
At that moment two men from the airdrome came running out and demanded an explanation of what had happened.
Briefly Mr. Holton told them, stressing the fact that the aviator had not waited to land.
“He ought to have his pilot’s license taken away from him,” growled Karl Sutman, when the naturalist had concluded.
The men from the airdrome were greatly angered at the strange aviator for not being cautious in landing. They addressed him in no gentle terms as he lay on the ground.
Karl’s monoplane had been only slightly injured in the accident, but it was enough to require an hour of patient labor to make the repair.
The possibility of the other aviator doing damage to Karl’s machine prompted the tall young man to ask that it be kept under watch near the airdrome.
“Now suppose we walk on into Lima,” suggested Mr. Holton, after the ’plane had been rolled over to a safe place.
At the edge of the field was a wide street that led directly into the city. This the travelers followed and before very long came to the business district. In front of the huge cathedral they stopped to view the crowds through the cluster of palm trees that was before them.
“Quite a bit of life here,” observed Bob, as his eyes followed the busy swarm of people. “Lima must be a place of considerable importance.”
“It is,” said Mr. Holton. “It’s the capital of Peru.”
In the distance, beyond the plaza, a line of lofty mountains was plainly visible in the thin air. No doubt they were many miles away.
The explorers sat down idly on the wide steps of the cathedral.
“Now,” began Mr. Wallace, “we should make plans for the next two weeks. Mr. Lewis, we know, will arrive in Mollendo in about that time. What do you suggest doing—stay in the vicinity of Lima and take in the sights here, or fly on to Cuzco and the heart of Inca land?”
“I’d rather stay where we are for a while,” spoke up Karl. “There’s so much to see here that it will be worth it to spend a good bit of time in this section.”
“That goes for me, too,” came from Joe. “We’ll go to Cuzco later anyway, so why not see what we can around Lima?”
As everyone was in favor of doing this, they agreed to find a hotel and engage rooms.
“If I’m not mistaken, we won’t regret staying in this region,” said Bob Holton.
And they did not. During the next week and a half they spent their time taking in the sights of Lima and the rugged country surrounding it. They visited the botanical gardens, the various plazas,public buildings, streets, and the national museum. They toured the fascinating country about the city, seeing the ancient Inca highway, the mines of Morococha, the lifeless native huts that were everywhere, the marvelously engineered railroads, and the interesting city of Callao, located near by.
At the end of the time that they could spend here, the explorers were well pleased with the eventful days that had passed.
“Now to head for Mollendo,” said Mr. Holton, as one morning he arose early to prepare his possessions for the trip. “We’ve only got about a day before Mr. Lewis’s steamer arrives from the United States, and we must use the time to best advantage.”
The others were ready and climbed into the airplane for the long journey.
Mollendo, the adventurers found after the interesting flight, was much like other cities they had visited. It possessed a very interesting dock, however, which held the boys’ attention for many minutes.
The following day, when it became time for the steamship to arrive, they were on hand to meet the naturalist and the others.
“It’s coming!” cried Joe, pointing excitedly toward the horizon. “And will I be glad to see Dad!”
“I guess we all will,” said Mr. Wallace.
The vessel steamed closer and headed for the port. As it came toward them, the explorers could easily make out someone on the deck whom they recognized. It was Mr. Lewis.
ASthe ship moved slowly into port, Mr. Lewis, standing anxiously on the deck, caught sight of his friends and waved wildly. Obviously he was exceedingly glad to see them again.
Others of the expedition who recognized Mr. Holton or the boys also waved a friendly greeting, which was returned by those on shore.
When the boat had come to a standstill, a huge crane swung out and up to the deck. At the end, attached by a massive hook, was a chair. Into this the boat’s passengers were to sit and be hoisted down to the dock.
“Funny way of unloading passengers,” laughed Bob, as he watched a woman rather nervously sit down in the chair.
“No other way, I guess,” came from Mr. Wallace. “The surf billows roll too high for the conventional method.”
The onlookers watched closely as the chair wasraised off the deck and suspended over to the shore.
The woman who was carried in this manner laughed as she left the chair and turned to see the motion repeated. From the look on her face, it had been an exciting experience.
“Here comes Dad!” observed Joe happily. “Wonder how he’ll like it?”
Mr. Lewis had seated himself in the chair and was being carried high in the air to the dock.
When he set foot on the ground, he rushed toward the others, on his face a look of intense joy.
Words fail to describe the meeting that followed. Mr. Lewis was literally mauled by his son and friends, who were overjoyed to have him again with them. Especially was Joe happy.
“I worried from the time you left Washington,” the naturalist told them, throwing an arm over Joe’s shoulder. “The more I thought about that airplane trip the more anxious I became. You didn’t have any trouble, did you?”
“It’s according to what you call trouble,” laughed Bob. “If you mean accidents, we didn’t have any. But if you mean just common bad luck, we had plenty.”
“Could have been worse, though,” his father reminded him. “And let me tell you that Karl is an excellent pilot. If he weren’t, we probably wouldn’t be here now.”
“As if I didn’t know it,” smiled Mr. Lewis, glancing at the blushing aviator. “If anyone else had offered to take you to Peru, I wouldn’t have thought much of the idea. Karl Sutman, though——”
At this moment a group of men came up, to be recognized by Mr. Lewis and Mr. Holton.
The youths, Mr. Wallace, and Karl were introduced to them as members of the archæological and geological divisions of the expedition. Dr. Rust, Professors Allan and Kelley, and Mr. Dunn, as their names were, had come to this region to search for additional Inca ruins and to study the land in the mountain section.
Two other men completed the personnel of the expedition. They were Mr. Buenagel, assistant, and Dr. Brown, physician, both of whom had been on numerous expeditions with the others. They now came up and received the same hearty welcome.
“Now that we’re all together,” began Dr. Rust, “we want to decide where we’ll make our headquarters. Is everyone in favor of having our base in or near Cuzco?”
“I should say yes,” came from Professor Kelley. “Cuzco, after all, is a very strategic point, and is quite easily accessible from all parts of this section. So why not locate there?”
As everyone agreed, the question was settled. Now came the problem of transporting the expedition’s supplies, of which there were many.
Karl generously offered the services of the monoplane in getting the trunks and bags over to Cuzco. He explained that he would be glad to do this for them, even though it might be necessary to make two or three trips.
But Dr. Rust, leader of the expedition, stoutly refused.
“We don’t wish to put you to that trouble,” he said. “As long as there is a railroad running up to Cuzco, we’ll make use of it and have our stuff shipped, even though it may take a few days longer.”
Karl wondered afterwards if the scientist secretly feared an accident. The tall young man remarked to Bob and Joe several days later that perhaps Dr. Rust did not wish to take a chance on the monoplane crashing with the expedition’s supplies on board.
As had been suggested, the supplies, including those of Mr. Holton and Mr. Lewis, were placed on board the first train that left for Cuzco. The boxes and trunks would not reach their destination until several days later, however, since it was necessary for them to be changed around several times.
Except for the three naturalists, the scientistsboarded the same train for Cuzco. Mr. Wallace and the youths’ fathers were to accompany Karl and Bob and Joe in the monoplane. With Mr. Lewis in the cabin, there would be an added load, but Karl told them it would not be dangerous.
“Just have to watch the take-offs and the landings more closely,” the aviator explained. “Outside of that, we’ll never know that another person is inside, as far as the ride goes.”
“Won’t ride any easier?” queried Joe, trying to appear innocent.
“Quit your kidding!” snapped Karl with a laugh. “This bus isn’t an automobile.”
“But a bus is an automobile,” said Joe persistently.
He dodged a pass that Karl swung at him. Then, seriously, he turned to the others, who were busy attending to minor tasks about the airplane.
“Everything’s ready,” announced Mr. Wallace, stepping inside the cabin. “Suppose we get started at once, so as to get there and look around some before the others arrive by train.”
Karl was willing. He climbed into the cockpit and started the engine. Mr. Holton, the last to enter the cabin, closed the door tightly just as the monoplane began rolling over the field.
“We’re off for Inca land!” shouted Bob excitedly, raising a motion-picture camera to his shoulder. “And won’t we have fun!”
“We’ll also have a little work,” said his father quietly. “If we get enough specimens from this region to satisfy the museum heads we’ll have to go some.”
Flying over this interesting land was exciting to the youths, who viewed the sights curiously. Before long they could make out the town of Arequipa away over to their right, and just behind it, El Misti volcano, whose sides sloped up to a point.
Karl guided the ’plane as near the ground as possible, knowing that he and his friends could not stand the rare air of several thousand feet higher without the use of oxygen. A few tanks of this valuable gas were now on the train en route to Cuzco. Karl had not thought it necessary to use them in the ’plane so soon.
At the speed they traveled, it did not take them long to sight Cuzco in the distance. Several miles away they could also see the town of Anta, which was a mere village compared to its neighbor city.
When they came nearer, Karl flew straight for the central plaza, so as to get a fine view of all the buildings and places of importance.
“Look at the people swarming to see us,” said Joe. “I guess it isn’t often that an airplane comes here.”
At about three hundred feet they soared leisurelyover the central plaza, where natives were gathering rapidly. Directly below them was the huge cathedral, which, as far as they could see, was the most imposing building in the city. All about were low structures, with an occasional higher building dotting the landscape.
It was a wonderful view. Even from that low altitude, the explorers could easily make out the surrounding mountains, on many of which were Inca ruins, including the “staircase farms.”
Joe considered it a wonderful opportunity to take several hundred feet of motion pictures. He pointed the camera first at the city below them, then at the near-by mountains, turning the crank continuously.
When he had flown a few times around the town, Karl picked out a level stretch to the east and began the dangerous task of landing. Well he knew at that altitude it would be easy to crash.
The monoplane headed downward at high speed, the wheels touched the ground, bumped back into the air, touched the ground again. The machine rolled ahead at fifty miles an hour, forty, thirty, and finally came to a stop dangerously near a large pile of stones.
“All out,” called Karl, when he had switched off the motor. “We’re here. And we came down without a smash-up.”
Directly across the river Almodena the adventurers could see Cuzco, looking strangely quaint in its pocket in the mountains.
“Here come more natives,” observed Mr. Holton, as a horde of twenty or thirty men, women, and children rushed toward the Americans.
As they came nearer, they uttered something that none of the newcomers understood.
“They’re speaking in Quichua—that’s the native tongue in this part of Peru,” explained Mr. Lewis. “It’s the same language that was used by the ancient Incas.”
Although the natives scrutinized the airplane carefully, they were not bothersome, staring rather in awe at the great “bird” that had come mysteriously to their city.
Karl thought it best to have the craft guarded against possible marauders. But how he could secure a guard was a problem, since none of the Indians could understand English or Spanish. And the aviator knew not one word of Quichua.
“Suppose we take turns watching it,” suggested Mr. Holton. “I’ll take the first watch of, say, two hours. Bob, you can take the second, and so on until we can make some other arrangements.”
“And while Dad’s staying here with the ’plane,” began Bob, “I’d like to look around a bit. Anybody want to go with me?”
“Sure.” Joe was anxious to see the sights in this strange land.
“Don’t be gone long, boys,” cautioned Mr. Lewis. “We all want to be on hand when the train arrives from Mollendo.”
The chums walked south over a level plain, hoping to see something of interest before long.
They had not long to wait. In a little open grassy stretch beside a wall of rock was a herd of ten or twelve llamas, grazing peacefully. These animals were about 4 feet high, with long necks and a head like that of the camel.
“Let’s go up and see them,” said Bob, moving over to the herd.
“Better not,” warned Joe. “They might be dangerous.”
“Dangerous? Those things dangerous? Wait a minute and I’ll show you how peaceful they are.”
Bob had walked up to the foremost black animal and now began to stroke its woolly back.
Then an unexpected and unpleasant thing happened. The llama turned suddenly on Bob and spat violently in the youth’s face.
BOBshook his head to rid himself of the sickening saliva. He wiped his face with his handkerchief, with his hands, with anything he could find. At the same time he stepped out of reach of the treacherous animal.
When he had completed rubbing, he turned sheepishly to Joe.
“Guess I learned my lesson,” he said quietly. “But who’d ‘a’ thought it of the brutes?”
“Isn’t wise to do anything unless you know what you’re doing,” Joe reminded him.
“I’ve a notion to go over and wring its neck!” snorted Bob, glancing at the llama, which had resumed its grazing as if nothing had happened.
“Better not,” Joe warned him. “You might not be able to do it. And the Indian that owns them might come out.”
“Let him come!” Bob was confident that he could manage both the llama and the Indian.
He decided to let the matter drop, however, and continue the walk about the plateau.
As the youths hiked farther, they passed the grassy region and came to a higher slope that was dotted with occasional patches of cacti, thorn bushes, and stunted trees. The Australian eucalyptus, a small tree, was abundant.
“Can’t raise anything here,” remarked Bob. “Almost as bad as it is on the Sahara Desert.”
The chums made a wide circuit about Cuzco, coming in sight of the monoplane from the opposite side.
“You’re just in time to stand guard,” Mr. Holton told Bob. “And while you’re doing that, the rest of us will look around a bit. We’ve all been busy studying maps of the Andes.”
The adventurers took turns watching the airplane and seeing the country all during the remainder of that day. If it were able to follow schedule, the train from Mollendo, bringing the others of the expedition, would arrive the next afternoon.
At that time all the air travelers but Mr. Lewis were in the railroad station waiting. Mr. Lewis had remained at the field to guard the ’plane.
“It’s coming,” said Mr. Wallace, and a minute later the train pulled up and stopped.
Dr. Rust and the other scientists stepped off, to be met by the naturalists and the youths.
“I think it might be wise,” began Mr. Holton, “to establish a temporary camp here near Cuzco, perhaps in the field by the monoplane. Is everyone with me in this?”
Professor Allan nodded.
“I am in favor of it,” he said. “Until we make further preparations for our work in the mountains it would be wise to put up our tents there.”
At the field they found Mr. Lewis waiting for them. He also agreed to follow Mr. Holton’s suggestion.
Four tents were pitched in a semicircle beside the airplane. The expedition’s supplies were placed systematically inside, and then began a discussion about the coming exploration.
“We who are after Inca ruins have decided to set off for the region near Mount Panta,” Dr. Rust said. “In our opinion, there is an opportunity to find wonderful Inca remains in this section. Most likely we will stay within twenty miles of that mountain for three or four weeks. Where we will go then we will have to decide later.”
“Now of course you archæologists want to know as nearly as possible where we naturalists will be,” began Mr. Holton. “I don’t know whether everyone will agree,” he went on, “but I know of a place that supposedly abounds with wild creatures. And I would suggest that we head for that spot.”
The others looked at him inquiringly.
“This morning while I was out scouting around I came across an American who was just returning from a hunting trip in the Andes,” Mr. Holton resumed. “He informed me that the valley of the Comberciato is teeming with wild game. According to his estimate, that’s about a hundred miles from here, northwest. It——”
“I’ve heard of it, too,” cut in Mr. Wallace, his face beaming with scientific enthusiasm. “Why not go there? We’ll probably find it worth our while.”
“I’m willing,” came from Joe’s father.
“Then let’s call it settled,” Mr. Holton said. “We’ll start out as soon as possible.”
“Here’s where Mr. Sutman and his airplane come in,” remarked Professor Allan. “By the use of the ’plane, we can keep informed as to the whereabouts of the other division of the expedition. It will prove a valuable asset to our equipment.”
Bob and Joe and Mr. Dunn took it on themselves to go back to the railroad station and have the many boxes of food and supplies removed to the camp. The scientists had purposely left them in charge of the agent until after deciding the course of the expedition and had carried only the lighter bags and cases to the camp.
The railroad agent, when asked of a means of transporting the boxes, pointed outside to a largecart drawn by a mule. Walking lazily at the side was an Indian.
“He will do it for you,” the railroad man said in poor Spanish.
Then, knowing that the Americans could not speak the Quichua language, the agent called to the native and asked if he would be willing to take the boxes.
The Indian merely nodded and went into the building after the first load. In all, there were about seventy-five cases, and he knew it would be necessary to make several trips.
“That mule doesn’t look any too willing to pull the load,” observed Joe with a laugh. “Be funny if he’d stop still when only about halfway there.”
When the cart was loaded with about fifteen or twenty of the boxes, the Indian called for the animal to pull ahead. But the stubborn mule refused to budge.
“Now what will he do?” mused Joe, looking at the impatient Indian.
He soon saw. The native removed five boxes and carried them back into the station. Then, with the cart lighter, he again attempted to make the mule move ahead.
But apparently it was still too much of a load, at least for comfort.
“That crazy donkey just doesn’t want to go,that’s all.” Mr. Dunn had been taking in the incident with a great deal of interest.
The Indian was becoming impatient. He had apparently removed all he was going to from the cart and intended to resort to force.
Walking to one side, he pushed with all his strength on the balky animal, at the same time saying something in Quichua that the whites guessed was not pleasant.
Slowly, very slowly, the mule struggled forward, snorting as if in rage. Gradually he quickened his pace, but never exceeded a walk.
“At this rate it’ll take us the rest of the afternoon to get everything in camp,” muttered Bob, amused and yet angered at the stubborn beast.
The youth guessed fairly right. The sun was almost ready to sink below the horizon when the last box was unloaded from the cart, after five trips had been made to carry all of the supplies.
“Too late to do anything tonight,” said Mr. Lewis, as the Indian, mule, and cart disappeared over the plateau. “I suppose we’d better take it easy, anyway. We’ll have some busy days ahead of us.”
Early the next morning the explorers were up preparing for the mountain journey.
“The first thing now is to get mules,” said Mr. Wallace. “And,” he added with twinkling eyes,“they’ll have to be faster than the one that carried our stuff last night.”
“You forgot.” Dr. Brown, the physician, was moving up to Mr. Wallace. “The first thing isn’t to get mules,” the doctor continued with a smile. “Medical attention always comes before anything else.”
“That means a physical examination?” asked Bob.
“Yes. And it also means vaccination against smallpox and typhoid fever. Those two diseases are very common in this part of Peru.”
Dr. Brown had attended to everyone but the youths and Mr. Wallace. But it did not take long to finish with them.
“Now as I was saying,” began Mr. Wallace, “the next thing is to get mules. And I know where we can find them. I inquired yesterday and found that a wealthy Peruvian who lives at the edge of Cuzco can let us have as many as we need. He will also see that we get native guides.”
“Don’t forget that we need about twenty-five mules—for both parties of the expedition,” Professor Allan reminded him.
“I haven’t,” the naturalist returned. “We can get as many as we need. Suppose we do it now.”
Mr. Wallace, Dr. Rust, and Professor Kelley set out at once to get the pack animals.
Meanwhile, Bob and Joe took movie cameras and walked leisurely up the hillside, intending to photograph anything that would come before them.
The boys had not gone far when they came upon a large group of Indian men, dressed in short, coarse trousers, hand-woven shirts, and brightly colored blankets. On their heads were the flat “pancake” hats which are common in this region.
“Here’s a good chance to take movies,” said Joe happily. He had brought the camera to his shoulder and pointed it toward the Indians, turning the crank steadily.
Suddenly the natives rushed angrily at the youths and made a grab at the motion-picture cameras.
“LETgo!” cried Bob, in his excitement forgetting that the Indians could not understand English.
The group had completely surrounded the youths, and one man was holding tightly to Bob’s camera.
The two chums knew that they had little chance against so many. But they fought doggedly to save the moving-picture machines, which were the only two they had.
With one supreme effort, Bob pushed the Indian nearest him to the ground and turned to find an opening in the crowd of natives.
But they were all about him, pushing and grabbing and striking to the best of their ability. It was plain that they were determined to take possession of the small boxes that the whites carried.
If it had not been for the necessity of holding onto the cameras, Bob and Joe could have put upa good fight, and perhaps driven the Indians away. But as it was they found themselves at a sore disadvantage.
“Help!” cried Joe, raising his voice to a shout. “Help! Help!”
Several seconds later a figure showed itself at the brink of the hill and came toward the fighting group.
“It’s Dad!” Joe cried happily. “Now there’ll be a fight!”
Mr. Lewis was soon joined by Mr. Holton and Karl Sutman. Like a flash the three grasped the meaning of the scuffle and rushed to the aid of the chums.
They dived headlong into the furious mob, using their fists to great advantage. One big fellow Mr. Lewis knocked flat on his back in a daze.
“Here, take my camera,” directed Bob, speaking to Karl. “Run as fast as you can back to camp. I want to take a lick at some of these beggars.”
Karl did as asked and dashed out of the mob for the tents. The last Bob saw of him he was rounding a bend and heading toward the monoplane.
Then Bob faced the man who had grabbed his camera.
“Take that!” the youth snarled, sending the Indian crashing to the ground.
The other natives, seeing that they were unableto hold their own against these whites, took to their heels and disappeared in the distance, kicking up a cloud of dust behind them.
“Well, we licked them.” Mr. Lewis was panting for breath. His face was red from fatigue, his clothes torn and wrinkled.
And the others were no better off. They had put up a game fight, determined to drive away their enemies.
“What was their motive for attacking you?” inquired Mr. Holton, wiping his face with his handkerchief.
“Beyond us,” Joe answered him. “We just looked at them and pointed our cameras at them——”
“Oh.” Mr. Holton seemed to understand everything. “That’s all you did, huh? Well, you did enough to excite their anger. Those natives are decidedly against having their pictures taken. They believe that any evil which might befall their pictures will come upon them later.”
“So that was it?” Bob laughed. “Well, we’ll know enough not to try the same thing again. Anyway, we got several feet of film exposed, and that’s better than nothing.”
The adventurers made their way down the hill, to be met by Karl and the others of the expedition, who had come to learn of their friends’ misfortune.
“Quite an encounter,” commented Mr. Dunn, when he was told the details. “These Indians are bad characters when their anger is aroused.”
Back at the camp, the explorers got everything in readiness for the expedition to depart as soon as Mr. Wallace, Dr. Rust, and Professor Kelley returned with the mules and guides.
It was nearly noon when Bob caught sight of a long line of mules heading toward the camp. They were coming slowly and leisurely, but always closer. Near the rear were the three explorers and two natives, who had been driving the animals.
“I see you met with success,” said Mr. Buenagel, addressing Mr. Wallace.
“Success is right!” the naturalist was beaming all over. “Don Chusmena here”—indicating a small Peruvian who had been conversing with several natives—“has generously offered to let us use twenty of his mules. They are all fine specimens, worthy of making the mountain trip. And the price is right.”
The mules were driven up to the camp and herded together in a group.
Mr. Wallace introduced Don Chusmena to the others. The Peruvian in turn acquainted the Americans with the Indians who were to act as guides for the expedition. He assured them that the natives knew every foot of ground in the Andescountry. One Indian was to lead Dr. Rust and the other scientists who were to search for Inca ruins. The other native would guide Mr. Lewis and any others that might be in the party of naturalists.
Both Bob and Joe had decided to stay with the expedition and not fly in the monoplane with Karl Sutman. Mr. Holton, however, intended to accompany the aviator and Dr. Brown, the expedition’s physician. Karl and the two men were to fly on ahead and look for Inca ruins from the air, keeping in touch with the others. It was intended that Karl head for the valley of the Comberciato, where he and Mr. Holton and the physician would await the others of the naturalist party.
“That leaves you and Mr. Wallace and Dad and I together,” remarked Joe. “I’m sorry your father isn’t going with us.”
Bob nodded.
“He’ll meet us at the Comberciato River, though,” the youth said.
“But that won’t be until two weeks from now, at least.” Joe would have been better satisfied if Mr. Holton had intended to go on foot instead of in the airplane.
Mr. Lewis and Mr. Wallace desired to get their division of the expedition started as soon as possible. But since it was so late they thought it best to wait until the next morning.
“That’ll give us time to look around some more,” said Joe, picking up a motion-picture camera. “Come on, Bob. There’s a lot to be seen around Cuzco.”
“Be careful boys,” warned Mr. Holton. “Don’t try to photograph any more Indians, or you may get into a bigger scrape than the one this morning.”
“Leave it to us,” laughed Joe. “We’ll be all right.”
The youths headed west toward the river Almodena. They resolved to cross it and proceed northward to the Fortress of Sacsahuaman and other Inca ruins.
From the river there was a narrow road that led up the plateau to the high hill that overlooked the city. As this hill stood between the boys and the ruins of the fort, which were located high upon another cliff, they found it almost necessary to climb to the top and then down the other side.
“Now for the ruins,” said Bob eagerly, pointing to the top of the low mountain that was before them.
The youths had begun the difficult climb to the summit and had rounded a turn in the rocks when they caught sight of an old man climbing slowly up the dangerous ridge.
“Look!” cried Joe in terror. “He’s falling!”
The old man’s foot had slipped, and he was trying as best he could to balance himself on a narrow ledge.
His efforts were in vain. The next moment he began to plunge helplessly downward.
With the quickness of a cat, Bob stepped forward and, bracing himself as best he could, he threw himself against the man. The impact of Bob’s heavy body stopped the man’s fall and sent him against the side of the cliff. It bruised his face and shoulders, but he was safe.
After a few moments of resting, the old man looked up, wild-eyed and white with fear. There was an expression of intense gratitude on his wrinkled face as it was turned toward Bob.
“You saved my life!” he cried in excellent English, gazing fearfully below. “And I want to reward you. I want to tell you of some Inca secrets—secrets of the Andes!”
ATonce Bob and Joe were breathless with interest. They had often heard of Inca secrets but had thought them nothing more than myths. Now, as this strange old man stood before them, the youths wondered if there might have been some truth in the fantastic tales told of Inca mysteries.
The old man hesitated for several minutes, staring off into space. Then, when the youths were becoming impatient with the long silence, he continued, speaking in a low voice.
“Far, far away, in the heart of a huge mountain, is a narrow tunnel that leads to a large cavern of Inca secrets.” Again the stranger hesitated, looking below at Cuzco.
“Why doesn’t he hurry?” thought Joe, almost saying the words aloud.
Finally the old man continued.
“This cave is so large that it occupies the entire mountain,” he went on. “It is lighted with a strangebrilliance, that comes mysteriously from the outside. But ah! The Incas were marvelous inventors. They could do many things that we Americans cannot do.”
“Then you are an American?” inquired Bob quickly.
The old man nodded.
“I spent my early years in the United States,” he explained. “Graduated from college and set out to be a scientist. Then I became interested in Inca ruins and came here to look for them. My entire lifetime I have spent in these mountains, looking for ruins and treasure.”
“Treasure?” cried Joe. “Is there treasure here?”
“Undoubtedly there is,” was the answer. “In fact I believe I have found some.”
The young men were all excitement.
“Tell us about it!” begged Joe.
“I am not certain that I have found any,” the stranger said. “But I came across a sort of bin that is covered with a heavy stone block. Alone I am not able to lift it off. I firmly believe that in the bin is something valuable. This is in that cave I told you about.” He stopped and glanced about; then, satisfied that no one else was near, he continued: “It is a long, hard journey to this wonderful place. There is a secret trail, that is known only to myself. And to add to that, there is a singleentrance to the cave. It cannot be opened until you press a hidden button.”
He stopped a moment and gazed thoughtfully at the young men.
“You saved my life,” he went on, looking at Bob gratefully. “For this I will gladly give you half of any treasure in the bin, if we can find any. Will you make the trip with me?”
For a few moments the youths said nothing. They wondered if there was really any treasure in the bin. And they wondered, too, if it might be possible to locate still more in the near-by mountains.
“I am willing to go,” said Bob at last. “It won’t put us out any, I’m sure. I think we can arrange it some way. Maybe Dad——”
He got no further, for at that moment the old man raised a hand for silence.
“Of course your dad is all right,” he said conclusively. “But I do not wish to take anyone but you and your friend here with me. Even your father might without thinking tell someone about this secret, and then we would lose everything. And I want no one else to know.”
“Then,” began Bob, “you want only Joe Lewis here and myself—my name is Bob Holton—to go with you?”
“You are right,” came the reply. “And my nameis Rander—DoctorRander. I would be much better satisfied if only we three went.”
“I think it can be arranged,” Bob told him. “What direction do we have to go?”
“East. Almost straight east from Cuzco. But of course there are many roundabout paths that we must follow, and much of the way is over no trail at all.”
“We’ll let you know a little later, if that is all right,” said Bob. “Where can we get in touch with you?”
Dr. Rander explained that he was staying in a little adobe hut at the other edge of Cuzco and that he had a sufficient number of mules to carry the provisions needed.
“How soon do you want to start?” inquired Joe, who was anxious to make the trip.
“I am ready any time,” the old man said. “If you wish, we will start tomorrow.”
Bob explained that they would talk it over with their fathers and call on their friends that night. With this, the youths headed back to camp, not desiring to lose more time even in seeing the ruins at the top of the hill.
“What do you think of it?” asked Bob a little later, as he and his friend came in sight of the monoplane.
“I think a lot of it,” Joe answered. “Why, it will be wonderful!”
“Don’t be too sure that we can go,” Bob reminded him. “It all depends on what our dads think. If they’re afraid to let us leave the expedition and start out with this Dr. Rander, why, I suppose that will end it all. And the old man won’t let anyone else go with us.”
“Funny he’d tell us about that secret, isn’t it? If he had kept still, he’d have had all the treasure for himself. But then, I suppose he was so glad you saved his life that he was more than willing to let you in on it. Then, too, he’s not sure of finding it.”
At the camp, the boys found their fathers and others awaiting them.
“What do you think of the ruins?” asked Mr. Holton, as the chums came up.
“We don’t know much about them,” returned Joe. “But there’s something else we want to tell you.”
While the men listened, Joe told of seeing the old man climbing up the steep hill and of Bob’s saving his life when he fell. He told of the secret treasure that the stranger said was in the Andes, and of the old man’s desire for the two youths to accompany him in the mountains. He finished by saying that he believed it might be worth while to go.
“Perhaps you’re right,” came from Mr. Holton. “It might pay you to go with him. Do you think hecan be trusted?” Mr. Holton had great faith in the judgment of his son and Joe.
“Don’t know why not,” said Bob. “He seemed so glad that he had not fallen down the cliff that he was happy to tell us about the treasure.”
“There isn’t a chance of his being crazy, is there?” asked Karl Sutman, who was also listening to the conversation.
“Oh, of course there’s a chance,” replied Bob, “but I’d be willing to bet anything that he isn’t.”
“We can go with him, can’t we?” queried Joe, glancing especially at his father. “We may find treasure, after all.”
“I see no reason why you shouldn’t,” came from Mr. Lewis. “Of course you’ll be careful. And there’s very little danger of getting lost, with all the native huts scattered about. What do you think, Howard?”
“Like you,” Mr. Holton replied. “After all, Bob and Joe are able to take care of themselves. If Karl will stay in the vicinity of Cuzco until they get back, it will ease matters some. Or, if the boys will be gone too long, Karl can come on with the rest of the expedition to the valley of the Comberciato, and then return later to pick up Bob and Joe in Cuzco.”
“I’ll be glad to do it,” Karl Sutman said, and so the matter remained settled.
That evening Bob and Joe went to Dr. Rander’s hut at the edge of Cuzco. The old man seemed glad to see them, offering them the best chairs he had.
“Now about the secrets,” he began, after he had closed the door and made sure that no one was near. “First of all, we must keep it strictly to ourselves. If, while on our way, anyone should ask why we are going into the mountains, we must not tell them.”
“For one thing, we’re going to take movies of the country,” said Joe, and then explained this in full to the old man.
The youths spent all evening at the old man’s hut. When at last they were ready to leave, they had agreed on one thing: They were to start early the next morning.
As they walked silently back to the camp, gazing up at the starlit sky, Bob and Joe wondered what would be their adventures for the next few weeks. Would they actually come into possession of valuable treasure?