Lin Carter 
Mad Empress of Callisto 

Jandar – the alien abducted by the mad Tharkolian princess Zamara and taken prisoner in the Scarlet City, along with his devoted companion Ergon and beloved Darloona – effects a daring celestial escape. But freedom proves more terrifying than the most heinous captivity when they find themselves adrift in the skies of the great monstrous ghastozar, enslaved by the barbaric arthropods of the Yathoon Horde and at the fiendish mercy of an insidious Kuurian Mind Wizard determined to snare them in a macabre and horrifying web of death…