Pellucidar
First published in All-Story Weekly during May 1915. First collected in book form by A.C. McClurg in 1923.
David Innes brought back to Pellucidar the implements that would help him carve out a prehistoric empire in that weird Stone Age land at the earth's core. With twentieth-century skill and technology he could lead the tribes of Pellucidar against the dominant race of reptilian monsters and their ape-like soldiery.
But before he can subdue the terrible and inhuman Mahars, David must embark on a desperate search for Dian the Beautiful, his empress, abducted through the treachery of Hooja the Sly One. Together, they struggle to survive in a world of evils and dangers undreamed of on the surface of the Earth.
Edgar Rice Burroughs
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, although he produced works in many genres.
Pellucidar
Pellucidar consists of seven books. The current recommended reading order for the series is provided below.