A Change of Friends: Jon's Angry

As Jon walked away, an anger overtook him. He thought he could trust Karyn, but apparently not. She tricked him into taking the stone from him and using it. He wanted to get back at her, but after that wish she made, he couldn't use the stone on her. Or could he? She never wished that *someone else* couldn't do it. All he had to do was find someone to make the wish *for* him. He walked towards the school, but then stopped when he saw ...