After Karyn and Zoe ripped away the paper door, they walked into the bedroom and saw Jon standing at the furthest side of the room, holding a small stone in his hand.
Just a few seconds before his bedroom door was turned to paper, Jon spotted the stone. It was lying on the floor. He must have accidentally dropped it. So, by the time Zoe and Karyn came in, he had the stone firmly in his hand, ready to make his move.
"Give up, Jon," Zoe said.
"No way. I wish ..."
