"Zoe" said Jen, "I have a magic stone that grants wishes. You think you have a brother because I made a mistake with the stone."
"That's absurd" replied Zoe. "I like having fun with 'magic' but that doesn't mean you can just say something and make anything you want happen."
"Look, I'll prove it to you. I wish that a leprechaun would appear from nowhere, hold up a large sign saying 'Jen has a wishing stone' long enough for you to read it, leave behind a pot of gold-foil chocolate coins, and then leave."
A giggling, foot tall man dressed in green materialized in the middle of the room and held up a four foot stick, atop which was the very sign Jen had asked for. Then he let out a chuckle and disappeared. In his wake was a cast iron pot full of what appeared to be money, but which on closer inspection turned out to be foil-wrapped chocolate.
"This is unreal," said Zoe. "You really do have a wishing stone!"
"It was my inheritance from Grandpa."
"May I use it for a moment?"
"Well, I suppose" said Jen. "But be careful. Bad things could happen." She handed the stone to Zoe.
"I wish," said Zoe, "that my dead sister is alive and well, that nobody except me, Jen, and her remembers that she was ever dead, and that in a moment she's going to open the door of this bathroom and walk in." Then she gave the stone back.
Now Jen hadn't quite expected that. She heard the footsteps of someone walking down the hall towards the bathroom....
