CHAPTERPAGEI.Uncle Sam Gets First Call5II.The Dreadnought Boys on Deck17III.The Work of a Dastard31IV.Anderson Dines on Mud49V.Like Thieves in the Night66VI.There’s Many a Slip78VII.“I Name You ‘Lockyer’â€89VIII.To the Uttermost Parts of the Sea105IX.Schooner, Ahoy!121X.Fighting Sound Pirates134XI.Channing Lockyer Files a Message143XII.Technically Torpedoed!152XIII.A Messenger from the Deep163XIV.A “Big League†Reported175XV.Some Rascals at Work192XVI.Into the Thick of It201XVII.A Surprise Party with a Vengeance213XVIII.“Safe as in a Steel-lined Vaultâ€224XIX.Ned is Astonished236XX.Tom’s Very Thick Fog248XXI.The Shipwrecked Men—and a Box258XXII.An Infernal Machine275XXIII.The Grim Visage of Danger288XXIV.Mutiny on the High Seas303XXV.Mr. Lockyer Captures a Prize311