Don Winslow of the Navy

The Fates and Flora Fourflush

The Hidden Hand

The Green Archer

The Diamond from the Sky

The Great Radium Mystery

The Vigilante: Fighting Hero of the West

The Vigilantes Are Coming

Robinson Crusoe of Clipper Island

The Amazing Exploits of the Clutching Hand

Drums of Fu Manchu

The Brass Bullet

Lost City of the Jungle

The Great Gamble

The Fortieth Door

Zorro's Fighting Legion

Winners of the West

Spy Smasher

Jungle Queen

The Great Alaskan Mystery