when is the elf on the shelf last night

Well, last night was an eventful one, that's for sure. Some elves were busy overseeing the toy production line, making sure each toy was assembled correctly. Others were helping repair and upgrade machines to keep the workshop running smoothly. And of course, there were those elves who were busy working closely with the engineering elves, developing new and exciting toy designs. It was a busy night for all of us, but it was also a productive one.