All good stories have a villain who ends up turning good and everybody knows the villain at Christmas time is the Grinch who always tries to steal Christmas. The Grinch can escape Whoville and come to your house to make things interesting this Christmas. Afterall the Grinch has been around longer than those cheeky elves.
Naturally he's going to inject a little mischief and try to thwart the elf on the shelf's plans most nights, but as the month goes on they may become friends and start working together to spread the Christmas spirit. Here's lots of ideas if you want the Grinch to come visit with the elves this year.