when is elf on the shelf last night

Elf on the Shelf has been around for several years, and there are many stories and rumors about its origin and purpose. However, the most popular one is that Santa's elves would come down from the North Pole during the Christmas season and help him keep an eye on children to make sure they were being good. Elf on the Shelf is a doll that acts as the elf's eyes and ears in the home, and it's believed that if children misbehave, the elf will report back to Santa.