Five excited little monkeys dress up for Halloween. They are going trick-or-treating with their favorite babysitter, Lulu. "Ghost, princess, goblin, banana, and alien," 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 those five little rascals get tricked by their own monkey business? Vibrant, silly, and perfect for reading aloud, this non-scary Halloween story is sure to delight fans of this best-selling series. Includes recipes for "eyeballs" and "worm juice" so kids and their grownups can make their own holiday "trick" treats at home.