Bitsy

Bitsy is the smallest of the beaver family. She wants to help build the dam too. But her little teeth can't chop down a tree. There is nothing she can do to help. Then... just as the dam is almost done, a leak springs out. Only a little stick will solve the problem, and little Bitsy is the perfect one to help!
Another charming title in the Simply Small series by Paola Opal. Best of all, this one features an adorable little beaver!