"A perfect combination of adventure, humor, and pure imagination!" —Jessica Day George, New York Times best-selling author of Tuesdays at the Castle "Funny, scary, and endlessly inventive." —Bruce Coville, author of Jeremy Thatcher, Dragon Hatcher Sophie loves the hidden shop below her parents' bookstore, where dreams are secretly bought and sold. When the dream shop is robbed and her parents go missing, Sophie must unravel the truth to save them. Together with her best friend—a wisecracking and fanatically loyal monster named Monster—she must decide whom to trust with her family's carefully guarded secrets. Who will help them, and who will betray them?