By hiding in a new spot each morning around the house, the scout elf plays an ongoing game of hide and seek with the family. The Elf on the Shelfexplains that scout elves get their magic by being named and being loved by a child.
Day 19 my boys scout elf (Elfie) decided to be naughty and redo the tree but didn't know how to build the tree but he did try to fix it