Keys to the Demon Prison (Fablehaven)

In an effort to stop the Sphinx from opening the demon prison Zzyxx, Kendra, Seth, and the Knights of the Dawn race to find the exotic artifacts and keep them out of the Sphinx's control.

• | Author: Brandon Mull
• | Publisher: Aladdin
• | Publication Date: February 22, 2011
• | Number of Pages: 640 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 1416990291
• | ISBN-13: 9781416990291