Collects Turok, Son of Stone (1956) #38-43.
*Indian braves Turok and Andar are trapped in a lost valley struggling to survive while they search for a way to return to their true home and tribe. But searching only seems to bring them more peril in this strange place where wonders from earth's prehistoric past thrive: dinosaurs with gaping, hungry jaws, rival tribes of tree--dwelling monkey men and underground spider men, poisonous fruits that change the nature of peaceful beings, ghosts of dinosaurs long dead, and more! *Source: darkhorse.com