Just how DO you tickle a dragon?
Ruthie has a problem. Her best friend, Tubby, is a great big, round, blue dragon, and she has never heard him laugh. Not once. Not ever.
So Ruthie sets out to change that. But when you're trying to tickle a dragon, ordinary ideas just won't do. As Ruthie's plans get bigger, sillier, and more outrageous, she begins to wonder...
What if she's been doing it all wrong?