The birthday boy accidentally invites a werewolf to his sleepover.
At first, Max doesn’t want to invite new kid Sam to spend the night along with his other friends. “There’s something different about him,” he argues, but his mom counters that “that’s no reason to leave him out.” The third grader conveys his concerns to his other friends, but they seem to like the weirdo—apparently he “can run really fast,” says Michael (similarly initially left off Max’s guest list for nose-picking), and Elliott enthuses that he “always knows what’s cooking in the cafeteria way before lunchtime.” Sam himself seems hesitant, his hair standing on end as he says “I’m not sure I can…there’s a full moon that night.” But Sam decides to show up after all, and during the course of the sleepover he and his oddities start to grow on Max. Before long it’s revealed that the rare-meat–loving, hairy boy who’s inclined to bite is, in fact, a werewolf. The beastly reveal at the end is fun, but the journey there is bogged down by confusing transitions between scenes and awkward sentences. All the characters, including the protagonists, are awfully bland, and their somewhat interchangeable names make it hard to distinguish between them. The illustrations are unfortunately drab for such a lively concept. Max, his mother, and all his guests save Jeremy, who presents black, seem to be white.
It’s got a werewolf, but it’s bloodless.
(Picture book. 4-7)