Where's Boo? is a guessing game in board book form! Very young readers will love searching for Boo the black cat among familiar Halloween characters and objects—and finding something unexpected instead. Each page offers a hint of Boo, but it isn't until the last page that readers will find him. And when they do, they'll want to start all over and do it again!With an updated cover, this board book is the perfect treat for trick-or-treaters!