Five thousand years ago, a great war took place between gods and demons, and the demons, having been defeated, were expelled from their native dimension. They had to settle in a new dimension, deserted and barren, and most likely they would all have died if they had not discovered a channel leading... to Earth! Among the current generation of demons, Kai Wren especially stood out - a sword master, a dreamer and a glass blower who creates bottles in which entire worlds were located. He lived in peace and solitude for a long time, but one day his peace was disturbed... Wren had to make new friends and new enemies, go through many trials and prove that it is not for nothing that he bears the title of Demon Lord. “Demon Lord” is the last work of Roger Zelazny, finished by Jane Lindskold.