"I wish all the other kids at school knew what it was like to go through all this pain and suffering," Sarah said.
"Oh, Sarah," Susan said. "You don't really mean that, do you?"
"She was in an accident? What kind of accident?" Jon asked Karyn. Suddenly, the stone glowed in his pocket, but he didn't notice. He also didn't notice when reality changed around him to fit Sarah's wish. Since neither he nor Karyn heard the wish that Sarah had made, their memories changed to fit the new reality.
And in this new reality ...