Everything at Santa’s workshop comes to a halt when Santa comes down with the mumps. His face is all puffy. His eyes are almost swelled shut. It’s only a few days before Christmas and everyone is in a panic. Mrs. Santa can’t drive the sleigh. The elves can’t drive the sleigh. And the reindeer don’t know where to go, without Santa at the reins. What happens to Christmas if Santa doesn’t get well in time?