CONTENTSCHAPTERPAGEILost9IIFire!23IIIPaul Looks Into the Matter28IVDetectives36VA Suspicious Individual44VIThe Spy53VIIThe Robbery66VIIIEncounter73IXWho Is Mr. Grey?81XStumped!90XIA Hunch97XIIA Bump on the Head105XIIIDiscovery113XIVA New Turn of Events122XVFollowing Up Their Clues131XVIPaul Gets Into Trouble138XVIIParental Admonitions149XVIIIFalse Alarm!156XIXCaptured!163XXEscape!172XXIConvincing the Police178XXIIMr. Grey191XXIIIPaul Helps Out197XXIVBattle204XXVInto the Lake210XXVITrouble at Home218XXVIIMystery of the White Card229XXVIIIAgain the White Card237XXIXMystery Solved243
CONTENTSCHAPTERPAGEILost9IIFire!23IIIPaul Looks Into the Matter28IVDetectives36VA Suspicious Individual44VIThe Spy53VIIThe Robbery66VIIIEncounter73IXWho Is Mr. Grey?81XStumped!90XIA Hunch97XIIA Bump on the Head105XIIIDiscovery113XIVA New Turn of Events122XVFollowing Up Their Clues131XVIPaul Gets Into Trouble138XVIIParental Admonitions149XVIIIFalse Alarm!156XIXCaptured!163XXEscape!172XXIConvincing the Police178XXIIMr. Grey191XXIIIPaul Helps Out197XXIVBattle204XXVInto the Lake210XXVITrouble at Home218XXVIIMystery of the White Card229XXVIIIAgain the White Card237XXIXMystery Solved243