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.