Mind Wizards of Callisto

Jandar - the alien clawed from his airship by the cannibalistic Zarkoon bird-men while leading his aerial armada to an attack on the hidden city of Kuur - devises a daring escape into the land beyond the world's edge. But in this unknown terrain, with only a nubile jungle maid as a guide, he is no longer the hunter but the hunted, prey for the giant fang-snouted groack, game for the ferocious six-legged othodes, and stalked by a fate far worse than death which forces him to renounce all hope of rescue: the merciless vengeance of the fiendish Mind Wizards of Callisto...