Disappeared

"What is this?" When Ji Jing returned to her room, she saw the two little paper men who were originally nestled on the bookshelf had climbed onto the desk and were happily holding a letter and spinning around.

"Today, a strange little person climbed up the window and handed it in! It said that this is a letter for Master!" The little paper man chattered. The little man couldn't find the recipient and stuck his head out of the window, so they accepted it for their master.

"The little person who climbed in through the window…What kind of villain is he?" Puzzled, Ji Jing picked up the envelope and flipped through it.

The envelope was pure white and very clean. Other than the red wax used to seal it, there was nothing else. The sender, recipient, and address were all empty.

"A very beautiful little person!" The little paper man gestured with his hands and feet." It's about this high!"