Immediately after Karyn left, Jon fell back to sleep. After the night he had with Karyn, he was exhausted. And he was so tired that he didn't even notice that Karyn took the stone with her. He wouldn't even notice that it was missing from his room until the next day. But by then, his life would have already changed, although he wouldn't notice.
Because that night at the Hoag residence, Karyn was thinking up a little bit of revenge. Jon had treated her badly right before he asked her to leave. But now since she had the stone, she could get back at him.
"I wish ..."