"I wish ..." Karyn began, but before she could finish, Jon came around the corner, startling her.
"Karyn, I forgot to tell you ..."
He surprised her so much that she didn't think about what she was doing before she said "Jon, go away." This was her time to make wishes and she didn't want Jon to hear what her wishes were.
Suddenly, Jon disappeared and it only took seconds for Karyn to discover that she made him disappear with her accidental wish. As far as the stone was concerned, she wished for Jon to go away. But where did Jon go? Was he erased from existence? Or was he just somewhere else?
This was Karyn's second screwed up wish. She certainly wasn't off to a great start. And her wish-enhanced breasts and hair suddenly seemed like small problems compared to Jon's disappearance.
