The People that Time Forgot

In uncharted Caprona, an island lost from the map of the earth, where time had stopped and all the primeval creatures of long-gone ages still prowled, Bowen Tyler was lost. To find Tyler, Thomas Billings traveled across the world to Caprona with every advantage the modern world could afford. A light hydroplane would allow him to scale the perilous wall of cliffs that surrounded the island, and rifles, pistols, and ammunition would provide protection against the monstrous prehistoric beings ...