In another adorable story starring Eileen Christelow's mischievous and beloved monkeys, these five silly monkeys go trick-or-treating and fun chaos ensues! Now in a sturdy board book format. Five little monkeys dress up for Halloween. They're going trick-or-treating with their favorite babysitter, Lulu. Mama reminds her, "Don't lose the rascals!" But soon those mischievous monkeys meet other costumed friends and decide to try "the best Halloween trick ever!" Will Lulu be fooled? Or will the five little monkeys get tricked by their own monkey business? Vibrant, silly, and perfect for reading aloud, this non-scary Halloween story will delight fans of this best-selling series.