When Megan's dad tells her not to let the pigs out of their pen, curiosity gets the better of her. Why not? Pigs are too dumb to do anything anyway - or are they? Before she knows it, the pigs are wreaking havoc all over her house, all over her school, and all over town. It's up to her to figure out how to get them back home. To Megan's surprise, she discovers the animals are much smarter than she realized. Young children everywhere will delight in discovering another bestselling Robert Munsch classic in this board book format, with simplified text.