Frustrated by Santa's slowness at Christmastime, Muckle the elf creates a mechanical replacement called the Deliverator and proposes a series of contests to prove that it can do Santa's job better than he can.
Shortly before Christmas, Santa discovers that the sleigh needs major repairs and the reindeer are out of shape, and so the elves build him a jet to use on his annual trip.
Invites the reader to take the Nice List Test, while avoiding mischievous Elf's naughty tricks, to prove Santa should bring Christmas presents to him or her.
When Shmelf, one of Santa's elves, learns that Jewish children do not celebrate Christmas, he investigates and learns all about Hanukkah, then gets a special new task from Santa.