Brandon Mull

"Very strange things are afoot at Fablehaven. Someone or something has released a plague that transforms beings of light into creatures of darkness. Seth discovers the problem early, but as the infectious disease spreads, it becomes clear that the preserve cannot hold out for long. In dire need of help, the Sorensons question where to turn. The Sphinx has always given sound advice, but is he a traitor? Inside the Quiet Box, Vanessa might have information...

As a dark force engulfs the land, the fate of Erdas has fallen on the shoulders of four young strangers who each have forged a rare bond with their spirit beasts -- a bond that gives great powers to all of them.

At the end of the school year, Kendra and her brother, Seth, find themselves racing back to Fablehaven, a refuge for mythical and magical creatures where their grandfather is caretaker. The Society of the Evening Star, an ancient organization determined to infiltrate the preserve and steal a hidden artifact of great power, is storming the gates. If the artifact falls into the wrong hands, it could mean the downfall of other preserves and possibly...