When the rogue changeling Inky Mess tries to take over the Make Believe using the Forgetting Book, feisty fairy-killer Clemency Pogue must put aside worries about her parents and learn to communicate with some frightening bees in order to stop him.
After returning home from their latest adventure, Mallory, Jared, and Simon find Mulgarath, an ogre and leader the goblins, has taken their mother captive along with Uncle Arthur's field guide.
Thimbletack, resident caretaker of the Spiderwick mansion, introduces readers to the faerie world and the many artifacts he has collected from the estate's former occupants.
The Grace children square off against an evil ogre who has kidnapped their mother and enlist help of a brownie, hobgoblin and more in their quest to reunite their family.