From today's most esteemed and celebrated picture book creator, and in the tradition of beloved classics like Where the Wild Things Are , The Adventures of Beekle , and Harold and the Purple Crayon , comes a new epic adventure story that will enchant and captivate a whole new generation of young readers! Caldecott-winning creator Jon Klassen (I Want My Hat Back ) and rising star illustrator Jess Hannigan ( Spider in the Well ) have created a groundbreaking, funny, and poignant story about the magical places determination and unexpected friendships can take you to. When Abner struggles to blow a bubble on the playground, his devastation turns to determination. Using all the money in his piggy bank, he buys $42 dollars worth of bubble gum and teaches himself to blow an enormous bubblegum balloon. An epic journey ensues as the balloon carries him far away on a whimsical flight, landing him in a farmer's field, spurring an unlikely friendship. As he earns back the money he needs to float home, Abner soon discovers the quiet pleasure of farm work, the power of friendship, and the profound ways we discover who we are when we dare to venture beyond! Jon Klassen is the author-illustrator of the Hat trilogy and The Skull , and the illustrator of many beloved classics such as Mac Barnett's Extra Yarn , Sam & Dave Dig a Hole , and The Three Billy Goats Gruff . Jess Hannigan is the author-illustrator of the wryly silly and critically acclaimed Spider in the Well and The Bear Out There.