Triple Spies

The Mystery of Witch-Face Mountain, and Other Stories

Submarine Warfare of To-day How the Submarine Menace Was Met and Vanquished, with Descriptions of the Inventions and Devices Used, Fast Boats, Mystery Ships, Nets, Aircraft, &c. &c., Also Describing the Selection and Training of the Enormous Personnel Us

Johnny Bear, and Other Stories from Lives of the Hunted