Book Synopsis The beloved, multi-award-winning duo of Mac Barnett and Jon Klassen tackle a perennial question. When Santa arrives at a childs house on Christmas Eve, does he go down the chimney feetfirst or headfirst? What if he gets stuck? What if theres no chimney? Maybe he slides under the door, as thin as a piece of paper? Or is it possible he pours himself through the faucet? What happens once hes inside? Whether its shape-shifting or impromptu laundry use, Mac Barnetts iconic talent for earnest deadpan humor and Jon Klassens irresistibly funny art honor the timeless question with answers both ridiculous and plausible, mounting in hilarity as the night continues. Channeling a childs fanciful explanations (and begging for further speculation), this latest collaboration by a New York Times best-selling team will find a secure spot among family holiday traditions. About the Author Mac Barnett is a New York Times best-selling author of several books for children, including Sam and Dave Dig a Hole , the Shapes Trilogy, and many others illustrated by Jon Klassen. He is also the author of Just Because , illustrated by Isabelle Arsenault; A Polar Bear in the Snow , illustrated by Shawn Harris; Johns Turn , illustrated by Kate Berube; and Twenty Questions , illustrated by Christian Robinson. Winner of three New York Times /New York Public Library Best Illustrated Childrens Book Awards and the Boston Globe-Horn Book Award, Mac Barnett lives in Oakland, California. Jon Klassen is the creator of the #1 New York Times best-selling I Want My Hat Back , which won a Theodor Seuss Geisel Honor, and its companions This Is Not My Hat , which won a Caldecott Medal and a Kate Greenaway Medal, and We Found a Hat . He is also the author-illustrator of The Rock from the Sky and The Skull , and the illustrator of Extra Yarn , Sam and Dave Dig a Hole , and the Shapes Trilogy, all by Mac Barnett. Originally from Ontario, Jon Klassen now lives in Los Angeles.