The Secret Kingdom

The Prince of Peril

Planet of Peril

Tarzan, Conqueror of Mars

Swords Against the Moon Men

Tarzan: Battle for Pellucidar

Carson of Venus: The Edge of All Worlds

Dark Tides of Mars: A Novel of Barsoom

Tarzan: The Greystoke Legacy Under Siege

The Range Detectives

Korak at the Earth's Core

A Princess of Mars: Shadow of the Assassins

Home Run: A Novel

Colter’s Journey

Tarzan on the Precipice

Final Ride For Justice