CONTENTS

CHAPTERPAGE
I.[Four Chums Abroad]7
II.[The News of War at Budapest]18
III.[Taking Chances]30
IV.[Under Suspicion]43
V.[Signs of Coming Trouble]56
VI.[The Camp on the River Bank]68
VII.[When the Storm Came]80
VIII.[The Sport of the Elements]93
IX.[The Hungarian Mob]105
X.[Cleverly Done]118
XI.[Under Fire on the River]130
XII.[Nearing the Scene of War]142
XIII.[The Boy from Serbia]155
XIV.[Friends in Time of Need]164
XV.[The Booming of Big Guns]175
XVI.[Under Cover of Night]182
XVII.[Amidst Bursting Shells]194
XVIII.[The Smashing of the Pontoon Bridge]206
XIX.[The Aftermath of Battle]218
XX.[A Rescue by the Way]227
XXI.[A Half-Way Stop]241
XXII.[Constantinople at Last—Conclusion]250