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. Grandpa Sorenson invites three specialists-a potion master, a collector of magical relics, and a trapper of mystical creatures-t ohelp protect the property from the Society of the Evening Star, an ancient organization determined to steal a hidden artifact of great power. TIme is running out. If the artifact falls into the wrong hands, it could mean the downfall of preserves and possibly the world.