Review. Booklist (September 15, 1988): 160. The critic praises Hill's gift for suspense and adds, "individualized characters and imaginative settings keep the story from being overly sensational."

Review. British Book News—Children's Books (March 1988): 30. The critic comments that "the language of the telling is often over-spiced; but the tale is never less than compulsively readable."

Review. Horn Book (March/April 1989): 234. Notes the book's "excitement, action, and peril."

Review. Junior Bookshelf (April 1988): 103. Praises Hil's vivid descriptions and action-filled plot.

Review. School Librarian (August 1988): 108. Praises Hill's "high skill in using setting, physical description, action and distinctive dialogue."

Also notes the thought-provoking elements of Hill's fiction.

Review. School Library Journal (November 1988): 125. Maintains that Master of Fiends while inventive, lacks character development compared to its predecessor, Blade of the Poisoner.

Review. VOYA (December 1988): 246.

The critic praises Master of Fiends for its "colorful creatures" and "suspenseful situations."