The Chessmen of Mars
Edgar Rice Burroughs
Martian (5)
Thuvia, Maid of Mars
Martian (4)
The Land That Time Forgot
Pellucidar
Pellucidar (2)
At the Earth’s Core
Pellucidar (1)
The Gods of Mars
Martian (2)
The Warlord of Mars
Martian Series (3)
A Princess of Mars
Martian (1)