Instead of cake and presents, for his thirteenth birthday Patrick Griffin got a severely broken leg and a standoff with the power-hungry ruler of the planet Ith. Luckily, Patrick and his band of Ithlings narrowly escaped from the clutches of the evil Rex Abraham. But it's still up to them to stop Rex once and for all before he destroys Earth. Back on Earth, Patrick's family is determined to unravel the mystery of Patrick's disappearance from his home planet-and Patrick's mother just might get swept up in the adventure. Meanwhile, everyone's beginning to wonder if Patrick's appearance on Ith was mere happenstance, or if it was orchestrated by the mysterious third universe, Mindth. But what would the powerful beings of Mindth want with a (just barely) 13-year-old boy? Find out in the breathtaking conclusion to the page-turning Patrick Griffin and the Three Worlds trilogy, a Douglas-Adams-meets-Kurt-Vonnegut adventure for kids.