Alfur is a character from the popular children's book series called The Elf on the Shelf. He is a small, scout elf sent from the North Pole to help Santa Claus keep track of children's behavior during the holiday season. Alfur observes children during the day and reports back to Santa each night, returning to a new location in the home each morning. In the story, Alfur is known for his playful and mischievous nature. He encourages children to be on their best behavior, as he is always watching. Families often enjoy the tradition of finding Alfur's new hiding spot each day leading up to Christmas.