Saved from bullies by the class misfit, Nick, Frank is drawn to Nick's house by strange music, discovers he has incredible secrets that bring danger, and decides to help him as he helped her.
Rudger, an imaginary playmate, must find his friend Amanda before he fades away to nothing, while eluding the only other person who can see him, evil Mr. Bunting, who hunts--and possibly even eats--imaginaries.
After an accident in the woods involving a young girl, eleven-year-old Hex meets a mysterious woman who offers him a deal to change his world, which sets off a ripple effect that Hex's best friend Tommo must rectify.