Tanar of Pellucidar
Edgar Rice Burroughs
Pellucidar (3)
Savage Pellucidar
Pellucidar (7)
Pellucidar
Pellucidar (2)
Land of Terror
Pellucidar (6)
Back to the Stone Age
Pellucidar (5)
At the Earth's Core
Pellucidar (1)