Friends Sam and Dave set to with a spade each and a dog for company. They are on a mission and they don’t intend to stop until they find something spectacular. When digging straight down reveals nothing, they dig sideways, in different directions – still nothing. At least, that’s what they think. When the boys take a nap, the dog starts digging. And something spectacular happens …

Mac Barnett born to non-farmers in a California farming community, Mac now lives near San Francisco. He's on the board of directors of 826LA, a nonprofit writing center for students in Los Angeles, and he founded the Echo Park Time Travel Mart, a convenience store for time travelers.

Jon Klassen received the 2010 Canadian Governor General’s Award for his illustrations in Caroline Stutson’s CAT'S NIGHT OUT. He also created illustrations for the popular series THE INCORRIGIBLE CHILDREN OF ASHTON PLACE and served as an illustrator on the animated feature film Coraline. I WANT MY HAT BACK is the first book he has both written and illustrated. Originally from Niagara Falls, Canada, he lives in Los Angeles.