In uncharted Caprona, a continent dropped through the map of the earth, where time had stopped and all of the primeval creatures of long-gone ages even now prowled, Bowen Tyler was lost. To find Tyler, Thomas Billings traveled across the world to Caprona, with all the weaponry today’s world afforded. A light hydroplane would allow him to size the perilous wall of cliffs that surrounded the isle and rifles, pistols, and ammunition would provide protection against the monstrous prehistoric beings Tyler got so vividly referred to. But actually stranger mysteries anticipated him where that barbaric civilization hid, torn between the impassable jungle on the main one side and an unfamiliar menace over the other.

‘We may have loved Verne and Wells and Kipling, but we enjoyed, we adored, we went quite mad with Mr. Burroughs.”Ray Bradbury