Keys to the Demon Prison

About “Keys to the Demon Prison”

The novel follows Kendra, Seth, and the Knights of the Dawn as they leave the safety of Fablehaven to stop the Sphinx from obtaining five artifacts needed to open the demon prison Zzyzx. For centuries, Zzyzx has kept dangerous dark forces, like the Demon King Gorgrog, from harming the world. The Sphinx's success would lead to a world-ending disaster, so allies of light must join together to protect the artifacts. The story takes them to magical preserves around the world, where each mission leads to new challenges. The final book in the series brings together all the characters as they face the forces of darkness in a battle for control of the prison's keys. Secrets are revealed and alliances are tested in the ultimate confrontation.