Word comes that David Innes, emperor of Pellucidar, lies in a Korsar dungeon, and Jason Gridley persuades Tarzan to join an expedition by the airship O-220 through the polar opening into the hollow world. Lost among sabre-tooth cats, ape-like Sagoths and prehistoric birds, the ape-man meets Jana, the Red Flower of Zoram.
The crossover of Burroughs’s two great series, pure pulp adventure. Download the free EPUB.