As the gradually increasing number of bears on wheels adds up through all kinds of combinations and permutations, beginning readers are offered a unique counting book, courtesy of the Berenstains.
When Santa eats so many sweet treats that he can't get back up the chimney, a family cat and dog and all the reindeer push and pull, to no avail. Finally, a mouse with a toy bulldozer provides the power needed to release St. Nick from his tight squeeze.