Burroughs, Edgar Rice

David Innes and friends discover an inner world populated by strange creatures.

Raised by a fierce she-ape of the tribe of Kerchak, Tarzan learns the secrets of the wild and becomes lord of the jungle. But when an expedition of white men and beautiful Jane Porter enter the jungle, Tarzan must choose between two worlds.

Mine owner David Innes and inventor Abner Perry set out to test Perry's mechanical prospector and end up in the land of Pellucidar, five hundred miles below the Earth's surface, where they work to unite the warring humans of the subterranean world, and to defeat the reptilian Mahars.

Tarzan, abandoned as a baby in the jungle of Africa, is adopted into a tribe of great apes and grows to become Lord of the Jungle until his domain is disturbed by civilized men who cause Tarzan to question his true identity.

Twelve stories feature the adventures of Tarzan in the jungle that is his home.