Tarzan
Tarzan of the Apes
Tarzan and the Jewels of Opar
The Return of Tarzan
Beasts of Tarzan
Jungle Tales of Tarzan
Tarzan the Terrible
Tarzan the Untamed
Son of Tarzan
Mars
The Gods of Mars
A Princess of Mars
Warlord of Mars
Thuvia, Maid of Mars
The Chessmen of Mars
The Land That Time Forgot
At The Earth's Core
Pellucidar
The Lost Continent
The Mad King
The Monster Men
The Mucker
The Outlaw of Torn
Out of Time's Abyss
The People That Time Forgot