All Aboard! (An Abrams Extend-a-book)Folding out car by car, this accordion style book takes readers on a tour of what's inside a train. Each car has something to findthings that make loud noises, things in different shapesand along the way, a little child searches for his missing hat. The back of the book is a running landscape dotted with objects for children to find and count. All Aboard! (An Abrams Extend a book) is a fun, interactive ride from beginning to end.