The Spiderwick Chronicles (book 5)
by Tony DiTerlizzi and Holly Black 3rd+
The time has come that Jared, Simon, and Mallory must final meet the ogre Mulgarath. He has killed many creatures in his quest to rule the world and will continue to unless the children can stop him. But he has also taken several important things from the children in which they must fight to get them back. What will happen to the Grace children and will the field guide be destroyed forever? Read The Wrath of Mulgarath, the last book in The Spiderwick series.