Thomas and Friends the Really Useful Engine book for the LeapPad learning system.When a fierce storm rips through the Island of Sodor, all the engines are sent off to fetch supplies to repair the damage. When they don't return, little blue Thomas the Tank Engine decides to set out on his own to help. One by one, Thomas encounters the engines and helps them out. Thomas is happy to save the day and proves that he is a really useful engine.For use with the LeapFrog LeapPad Learning System (sol