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 aNew York Timesbest-selling team will find a secure spot among family holiday traditions.