A hilariously quirky mini mystery reminiscent of Jon Klassen's classic I Want My Hat Back.Welcome to this extremely interesting book about size. Marcel is a bird and he is big. Steve is a worm, and he is . . . Wait a minute! Steve has DISAPPEARED! Does Marcel know something about it? And can he be persuaded to return that poor worm RIGHT NOW?!Susannah Lloyd's hilarious and strong narrative voice, paired with Kate Hindley's humorous illustrations, will leave readers in stitches as they solve the simplest mystery they'll ever read!