Thrillers

The German Spy in America The Secret Plotting of German Spies in the United States and the Inside Story of the Sinking of the Lusitania

When Scout Meets Scout or, The Aeroplane Spy

Flash Evans and the Darkroom Mystery

The Mandarin's Fan

The Young Wireless Operator—With the U. S. Secret Service

Disloyal Opposition

By Eminent Domain

The Wrong Stuff

Air Raid

A Pound of Prevention

Syndication Rites

Market Force

Unnatural Selection

Waste Not, Want Not

Failing Marks

The End Of The Beginning

Father To Son

Wisdom of the Hunter

The Bermuda Triangle Blueprint Exchange

Kill, Sleep, Repeat Volume II