A kind and gentle little boy turns into a destructive toddler when he dons his monster suit. As Monster Toddler, he spills juice, destroys toys, and tries to bite the cat. His sister, Charlotte, responds by shutting herself in her room, refusing to play with the wild beast. It’s not until Monster Toddler gets himself into a mess from which he cannot escape, that he calms down enough to ask for Charlotte’s help. Wonder Charlotte, donning a superhero costume, comes to the rescue. She responds with some lessons in polite and kind behavior, finishing with the removal of the monster suit. It’s clear that this suit has not been put away for good, however, as Timothy gazes at it longingly in a final parting scene. Simple watercolor illustrations alternating between full-bleed paintings and small vignettes provide a view of this familiar scene. Sure to entertain other Monster Toddlers. (Picture book. 2-5)