The Identity Swapping Stone: Zoe's Not There

Jon hesitantly opened his sister's bedroom door and walked in, hoping that Zoe wasn't there. And, as it turned out, she fortunately wasn't. He really didn't want to try to explain how he looked exactly like her. But where was she? Usually she'd be in her room at that time in the ... Suddenly, Jon heard someone walking through the hallway. He turned around just in time to see ... himself? He ran out into the hall and watched as someone who looked exactly like him walked into his bedroom. Could it be that it was Zoe? If Jon was Zoe now, then maybe Zoe was Jon. But did she remember being Zoe? Jon walked into his bedroom. "Zoe?" he asked. His doppelganger turned around and said ...