[CHAPTER I.] THE SISTINE MADONNA
[CHAPTER II.] THE THUNDERBOLT
[CHAPTER III.] THE REFUGE
[CHAPTER IV.] THE THRILLING ESCAPE
[CHAPTER V.] THE FIGHT IN THE BLUE
[CHAPTER VI.] ABOVE THE STORM
[CHAPTER VII.] THE ZEPPELIN
[CHAPTER VIII.] THE FRENCH DEFENSE
[CHAPTER IX.] THE RIDE OF THREE
[CHAPTER X.] THE DRAGONS OF THE AIR
[CHAPTER XI.] THE ARMORED CAR
[CHAPTER XII.] THE ABANDONED CHÂTEAU
[CHAPTER XIII.] ON THE ROOF
[CHAPTER XIV.] THE GERMAN HOST
[CHAPTER XV.] THE GIANT GUN
LIST OF ILLUSTRATIONS
["Their careering machine made but a single target while they could fire into the pursuing mass."]
["A second shot came presently from the forty-two centimeter."]
["Overhead the aeroplanes swooped lower and lower, like gigantic birds."]
["A vast red whirlwind in which the faces of men shone and steel glittered."]