Written in prose reminiscent of a spy or detective novel, Dewan reveals the secrets behind the tooth-fairy legend. Seven small creatures with smoothly shaped heads--cartoon turtles without shells--are dressed in gear similar to firefighters' outfits, and are introduced according to the skills they apply to their missions. The ``new kid'' narrates, describing the machines they make and remake with the same parts, to help them ratchet over the letter-slot in the front door, climb the carpeted stairs, and create a hot-air balloon and escape vehicle. The mission: to remove a tooth and place a coin under the pillow of a sleeping girl. The catchy lingo of the narration and the Lego-like machines combine for adventurous fun, especially for the mechanically inclined. Aim at older readers: The pages are often divided into comic-strip panels, and can be confusing; Dewan's rendering of the child is less adept than his other images, so that the hoisting up of the sleeping girl looks awkward and a little frightening. (Picture book. 5-8)
