Omens of Kregen by Alan Burt Akers

Striving to save his strife torn empire of Vallia from the Nine Unspeakable Curses, Dray Prescot has faced a plague of murderous werewolves and attack by the witch hordes.
Now he must conquer the bloodthirsty forces of the would be king of North Vallia, while at the same time protecting the realm from the evil witch Csitra and her sorcerous son. Journeying to the witch's dark Maze of Coup Blag, Dray and his comrades must meet the challenge of this realm of traps and treasures, where death waits around every turn, and a wizardly battle of destruction is the price of winning free...

Omens of Kregen is the thirty-sixth book in the epic fifty-two book saga of Dray Prescot of Earth and of Kregen by Kenneth Bulmer, writing as Alan Burt Akers. The series continues with Warlord of Antares.