Quickly, Jon said "I wish I wasn't here," not really thinking about it. The stone glowed, but nothing happened. She braced herself, knowing that her mom would come out of the bathroom at any second, but she didn't.
Jon walked up to the door and knocked. "Mom?" She opened the door and walked inside. Her mom was gone.
"Oh no," Jon gasped. "I wish to know what happened to my mom." The stone glowed and Jon got her answer. The wish she had made was a "wish chain" wish, not a normal one, even though she was touching the stone at the time. So her wish was granted to her mom and not her.
And wherever her mom was, she was continuing the "wish chain".
Jon's mom (Jane) walked through the grocery store, as if she had already been there, picking up food and drinks when she saw something she wanted. She had no idea that she was just in her bathroom at home. She didn't hear Jon's wish, so she didn't notice anything was different.
