Leaving the West, Dave returned again to school, as related in “Dave Porter and His Rivals.” Then came a remarkable voyage, as narrated in “Dave Porter on Cave Island”; following which he taught some of his school friends a much-needed lesson, the particulars of which were set forth in “Dave Porter and the Runaways.”

It was not long after this that we again found our hero in the West, as related in “Dave Porter in the Gold Fields,” where he helped to relocate a lost mine. Coming back, he put in a grand vacation in the Adirondack Mountains, many of the particulars of which are told in “Dave Porter at Bear Camp.”

Graduating from school, our hero took up the study of civil engineering. This at first took him to the Mexican Border, as related in “Dave Porter and His Double,” and then out to Montana, as we learn in “Dave Porter’s Great Search.”

The great war in Europe was now on, and the entrance of our country into the contest caused Dave to become an army engineer. He went to France and there had some decidedly strenuous adventures, as told in “Dave Porter Under Fire.”

In the present volume Dave is still with the “fighting engineers” on the war-scarred battle-fields of France. His adventures are thrilling in the extreme, but no more so than have fallen to the lot of many a young American in this epoch-making conflict.

Again I thank my many readers for the interest they have shown in my books; and I trust that the reading of the present volume will inspire all with an added love for our country.

Edward Stratemeyer.

CONTENTS

CHAPTERPAGE
I Near the Fighting Front[ 1]
II The Gas Attack[ 12]
III The Finding of Roger[ 21]
IV Letters[ 30]
V News from Home[ 41]
VI A Battle in the Air[ 52]
VII The German Aviator[ 62]
VIII The Perils of Road Building[ 73]
IX In the Thick of the Fight[ 83]
X Dave Shows His Bravery[ 94]
XI In the Hospital[ 104]
XII What Nat Poole Said[ 115]
XIII The Distinguished Service Medal[ 125]
XIV The Machine-Gun Nests[ 136]
XV Lieutenant Porter[ 146]
XVI A Personal Affair[ 156]
XVII At the Trenches[ 166]
XVIII The German Prisoner[ 175]
XIX At the Brook[ 186]
XX Attacked in the Dark[ 196]
XXI In the Abandoned Mines[ 205]
XXII Looking for Dave[ 215]
XXIII A Prisoner of the Enemy[ 227]
XXIV Trying to Escape[ 238]
XXV The Encounter on the River[ 249]
XXVI Deep in the Woods[ 259]
XXVII What Dave’s Chums Did[ 269]
XXVIII The German Headquarters[ 280]
XXIX The Last Fight[ 289]
XXX Captain David Porter—Conclusion[ 298]

ILLUSTRATIONS