As they waited in the car for Karyn to come outside, the real Jon grabbed for the stone and wished himself away before the other Jon could stop him.
"I wish I was somewhere else," Jon said quickly, not really thinking about what he was wishing for. He just wanted the stone and a quick escape.
The stone glowed and suddenly the other Jon was the only person in the car.
"Zoe!" he yelled in surprise and anger.