What happens when a dragon's tummy fills with butterflies? Meet Wobble-a thoughtful young dragon who worries about everything. What if he trips? What if his friends laugh? What if he's just not fast enough? When worry takes over, Wobble's tummy twists and flips like a storm inside. He wants to be brave, but the what-ifs feel too big to handle-until Professor Scales helps him learn a simple truth: