Karyn laughed.
Jon was aghast. "What have you done!?"
"I ..." Karyn couldn't look her new twin sister in the eye. "I'm s-sorry, Jon."
"You're sorry!? Gimme that rock!"
Karyn complied.
Jon held the stone in his/her clenched fist. "In this new reality, I was your twin sister. The stone can't change the past, which is stuck forever, thanks to you, but it can change the present. I don't have to be your twin sister anymore. I wish ..."
