Age: Kindergarten-2nd grade

Everybody knows that when you lose a tooth, you can fetch a handsome price from the tooth fairy. But what if you didn't want to give up your tooth and, instead, wanted to keep it forever? Nathan is stuck in this predicament and is having a tough time keep the tooth fairy's paws off of his teeth. Until finally someone cracks.

A cute book but the ending is abrupt and odd with him getting some sort of award for outsmarting them?