Not even his babysitter's most strenuous efforts can convince lively Joe the Frog to put on his pajamas and go to bed. But maybe if she figures out the magic words, he will finally hop under the covers and stay put! Easy words, rhyming fun, picture clues, and short sentences practically guarantee early reading success for the Level 1 set. There are now four Green Light Readers about Joe the Frog. Collect them all!