What's That, Jack?

Jack and George are resting quietly when BOOM! A huge and strange ball lands beside them. Whats that, Jack? I dont know, George. Maybe its a rock? Notoo soft. But it rolls. Fast! Jack, George and the ball roll right off the cliff and now its a parachute. But watch out, theyre going to land in the river Jack and George have a brilliant day full of adventure with this object that changes with the landscape. But what is it? It doesnt matter, it was fun trying to figure it out. This bright and funny book is a game of twists and turns, with a joyful refrain and vivid artwork to capture every toddlers imagination.