- 1Chapter I — Terrible Odds
- 2Chapter II — Two Young Lieutenants
- 3Chapter III — With the Army Again
- 4Chapter IV — The German Retreat Begun
- 5Chapter V — The Charge
- 6Chapter VI — The Bridge Is Held
- 7Chapter VII — Hal Makes an Enemy
- 8Chapter VIII — The Duel
- 9Chapter IX — To the Rescue
- 10Chapter X — A Wild Ride
- 11Chapter XI — Captured
- 12Chapter XII — A Traitor Appears
- 13Chapter XIII — A Fight in the Dark
- 14Chapter XIV — The Death of a Traitor
- 15Chapter XV — Attacked by the Enemy
- 16Chapter XVI — The Struggle in the Cave
- 17Chapter XVII — Safe
- 18Chapter XVIII — On a New Mission
- 19Chapter XIX — A Bit of Unwritten History
- 20Chapter XX — Off on a Raid
- 21Chapter XXI — Across the Marne
- 22Chapter XXII — The Kaiser
- 23Chapter XXIII — Within the Enemy’s Lines
- 24Chapter XXIV — A Cold Swim
- 25Chapter XXV — The German Coup Fails
- 26Chapter XXVI — Trapped
- 27Chapter XXVII — A Deed of Daring
- 28Chapter XXVIII — A Dash for Liberty
- 29Chapter XXIX — German Hospitality
- 30Chapter XXX — A New Friend
- 31Chapter XXXI — Berlin Once More
- 32Chapter XXXII — A Piece of Paper
- 33Chapter XXXIII — Taking a Chance
- 34Chapter XXXIV — Safe Again
The Boy Allies on the Firing Line
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