Alias No information Origin No information Occupation No information Powers/Skills No information Hobby No information Goals No information Type of Villain No information Xakhaz is the primary antagonist and final enemy of the Fighting Fantasy gamebook Beneath Nightmare Castle. A former human archmage defeated long ago; he was later revived by a follower of his cult and intends to take over the entire continent of Khul. Xakhaz and his awful creations were notably influenced by the works of HP Lovecraft.