From Joseph Kuefler, the acclaimed author-illustrator of The Digger and the Flower, comes a new book in his popular Digger picture book series, about a crew of building trucks who befriend a caterpillar and witness its metamorphosis into a beautiful butterfly. Perfect for readers who love the machines in Sherri Duskey Rinker’s Construction Site series.Digger and the other big trucks work all day, smashing and building and transforming their jobsite.But when a caterpillar weav