Someone's playing a trick on Katharine and Crockett--a ring-the-doorbell-and-run-away-quick trick. Could it be The Invisible Man? Or is that Vanessa's shadow lurking outside their door? When Katharine thinks she knows who is Ding Dong Ditching them, she decides to get even. But her prank doesn't turn out quite the way she's planned. Can Katharine make things right again without getting short? Aligned to Common Core Standards and correlated to state standards. Calico is an imprint of Magic Wagon, a division of ABDO.