Oh No, he's back.
When we came into the classroom there was a letter and a mysterious treasure chest waiting for us. The letter was from the Naughty Elf and he needed our help to learn how to be good.
He asked that if we saw him doing anything silly in the classroom, could we think of things he could do instead.
When we found him swinging on the paperchains that we had made, we thought that he could have made some more for us to help us decorate the classroom instead.