Pellucidar

In the hidden world of Pellucidar, David Innes returns to rescue his beloved Dian from a brutal captivity in a realm teeming with primeval beasts and warring tribes. As he ventures deeper into the uncharted inner world, he faces epic battles, strange civilizations, and the ever-present threat of death. With allies few and perils many, his only hope is his courage and the unbreakable bond he shares with Dian. Their fate-and the fate of Pellucidar-hangs in the balance.

Edgar Rice Burroughs (1875-1950) was an American author, best known for his creation of the jungle hero Tarzan and the heroic Mars adventurer John Carter. Pellucidar is a sequel to At the Earths Core, featuring David Innes.