I just don't know what's going onOr why it has to beBut every day it's something worseWhat's happening to me?So begins this uproarious new story from the best-selling creator of "No Jumping on the Bed , Green Wilma," and other popular books. The young narrator has discovered a disturbing trend: There's fuzz in his belly button his toes are peeling and something just fell out of his nose. The last straw is a loose tooth, which convinces him of the awful truth his parts are coming unglued "Parts" deals with a subject of deepest interest to every young child: the stuff our bodies shed. Parents will appreciate the reassuring message that it's all quite normal, while Tedd Arnold's comical illustrations and rhyming text are guaranteed to make young readers laugh their heads off.