[Chapter VI—The Glowworm of the Sea]
Looking for the 117th Division afloat. Dave’s extra nap. The row at the stern. The glow on the sea. The lie passed. Ensign Phelps picks up the mystery. The chart-room conference. The work of a spy. “A traitor on board!”
[Chapter VII—Darrin Has a Spy Scare]
Dave quizzes the accused. Ferguson’s turn on the rack. The search for evidence. “Have we spies on the ‘Logan’?”
[Chapter VIII—The Battle for the Troopship Fleet]
On board the troopship fleet. Torpedo talk. “Keep your hair from turning gray before you reach the trenches.” No clues or traces yet. The minute of signals. Vanguard of troopship fleet. Dave swerves for battle. “Let go the depth bomb!”
[Chapter IX—When the Enemy Scored]
The soldiers feel better. “They can’t hit us.” “They’ve got us!” The start of a panic. Destroyers scurry to save. The biggest submarine fight of all. Big guns roar.
[Chapter X—The Hottest Work of All]
In Periscope Lane. Shooting of the good old kind. Clean work. Dave Darrin’s lucky time. “Hit is the right word.” Machine guns turn loose. Playing upon the Hun gun-crew. Beatty’s luck changes.