Night's Master

In those days the Earth was not a sphere and the demons dwelled in vast magical caverns beneath its surface. Wondrous cities dotted the land and strange peoples and fabulous beasts prowled the deserts and jungles of the world. Supreme among those mighty demons was Azhrarn, the night's master. He it was whose pranks made nightmares on Earth, who brought desire and danger to those it amused him to visit, and who could grant wonders and create horrors unspeakable. (adapted from the back cover of the first edition)