Chicka Chicka Boom Boom

In this bright and lively rhyme, the letters of the alphabet race each other to the top of the coconut tree. When X, Y and Z finally scramble up the trunk, however, the weight is too much, and down they all tumble in a colorful chaotic heap: ``Chicka Chicka . . . BOOM! BOOM!'' All the family members race to help, as one by one the letters recover in amusingly battered fashion. Poor stubbed toe E has a swollen appendage, while F sports a jaunty Band-Aid and P is indeed black-eyed. As the tropic sun goes down and a radiant full moon appears, indomitable A leaps out of bed, double-daring his colleagues to another treetop race. This nonsense verse delights with its deceptively simple narrative and with the repetition of such catchy phrases as ``skit skat skoodle doot.'' Ehlert's bold color scheme, complete with hot pink and orange borders, matches the crazy mood perfectly. Children will revel in seeing the familiar alphabet transported into this madcap adventure. Ages 2-6. (Oct.)