Uh-oh! Cake has built a special fort... with no Monkeys allowed. New from the New York Times bestselling author of The Day the Crayons Quit! Meet Monkey and Cake. Cake has lots of questions. Monkey has lots of answers. They are silly. They are curious. Sometimes they fight. But Monkey and Cake are always best friends. When Cake decides to build an exclusive fort, Monkey feels left out. But before long, Cake discovers that being alone in a fort is no fun! Will these friends be able to work together, and find room for both of them?