Edgar Rice Burroughs

This third installment in the classic Pellucidar series returns to the exotic and savage land at the center of the Earth. Led by the American explorer David Innes, the human communities have finally overthrown Pellucidar's slave masters, the dreaded Mahars. The peace, however, is temporary, and the Pellucidarian Empire is faced with a new menace, the deadly Korsar pirates. In the ensuing battle many warriors are lost and one of the most courageous, Tanar of Sari, is captured. Tanar's captors take him to the horrifying realm of the Buried People of Amiocap and ultimately to the Korsars' dreaded dungeons. He endures these terrors because he knows he must escape. He must return to the empire at all costs and alert the people of the newly won empire of the tragedy that has befallen them--David Innes has been captured by the Korsars. Paul Cook provides an introduction for this Bison Books edition.

The transformation of a highly civilized, blue-blooded young Bostonian, into the savage bone-and-muscle chief of a band of shaggy cavemen is a challenge worthy of the talents of the man who created Tarzan of the Apes. In this tale, Burroughs tells, in a thrill-after-thrill novel, the story of Waldo Smith-Jones and how his desperate effort to survive on a lost island of primitive men and primitive beasts. How Waldo was given the name of Thandar, how he had won the hand of the cave princess Nadara, and how he overcame the most desperate of odds make this a real Tarzan-type epic.

An evil stalks the land of Tarzan of the Apes. Tarzan follows them patiently waiting for the time to strike these intruders. But they were not the only evil that stalked the lands, in the small valley of the Ghenzi Mountains, the last remnants of an ugly, perverted people dwelled in what they called their faith. It was an ancient belief, now they were wicked and many of them were insane. They have captured Lady Barbara Collis and meant to use her as a human sacrifice

When they were fourteen years old, Dick and Doc were attending an excellent English school where there were a great many future dukes and earls and arch-bishops and lord mayors, who, when they saw how much Dick and Doc resembled one another, called them "The Twins." Later, when they learned that Dick's father was distantly related to Lord Greystoke, who is famous all over the world as Tarzan of the Apes, the boys commenced to call Dick and Doc "The Tarzan Twins."