In the Hall of Dread Seth is able to hear the whispers of the shades imprisoned there. To enter the sanctuary, they must obtain a unicorn horn. In order to recover the Translocator they must go to the Dragon Sanctuary and recover a key. They read the message and learn about the Ocolus, as well as the Translocator. In the journal of Patton Burgess, Kendra learns there is a secret message about where the other magical artifacts are. She is picked up by Trask, a Knight of the Dawn, and returned to Fablehaven. She creates a clone of herself, enters the knapsack, and escapes the house. Kendra receives a note and a knapsack that has a magical room in it and a stingbulb. With her help, they discover a plan to rescue Kendra, but the group is still distrustful of her. He releases Vanessa from the Quiet Box, but she knocks him unconscious and tells Grandpa Sorenson.

Back at Fablehaven, another stingbulb infiltrates the group, this time in the form of Maddox. The Fairy Queen is able to help Kendra release the crystal. With it, Kendra is able to see everywhere at once, but it becomes overwhelming. The Sphinx arrives and forces Kendra to use the Oculus, one of the magical artifacts that can open the door to Zzyzx. Meanwhile, Kendra is taken to the home of a lectoblix (able to drain the youth out of people) named Torina to await a meeting with the Sphinx. They bury the clone (unaware it is not Kendra) and return to Fablehaven. Warren and Seth notice something odd with the clone after they intercept a letter revealing secrets, but when they confront it, it swallows a pill and dies. Just before Christmas break, Kendra is kidnapped by a member of the Society of the Evening Star and replaced by a Stingbulb (a plant that, once it stings someone, will grow into a perfect replica, but die after a few days). Its sequel is the last book in the main series - Fablehaven: Keys to the Demon Prison. In this one they visit a preserve for dragons, wyrmroost, strange changes are wrought in Seth, and the society go farther than they ever have. Seth and Kendra are thrust into another dangerous adventure, where they leave the preserve and explore others. This book starts off at the end of the third book, where the society of the Evening Star make some dangerous moves. Print ( hardcover and paperback), E-book and Audiobookįablehaven: Secrets of the Dragon Sanctuary is the fourth novel in The New York Times' bestselling Fablehaven series.

Fablehaven book 3