"I wish that the first person in the wishing chain was Karyn," Sarah said aloud.
Sarah was no stranger to Karyn's hatred of her, and the feeling was mutual. And after all Karyn said about her, she went and asked for matching hair and boobs trying to be her! Well now, Karyn can expect a whole lot more as well! That would serve her right, the creepy little hypocrite!
Jon was a problem, though. Karyn knew about the stone and would come running to Jon as soon as the weird stuff started happening. But what could she do about that...?
"I wish whenever Karyn is affected by the wishing chain, her first assumption will be that Jon wished it up to mess with her," Sarah said. "In fact, I wish that is exactly what the stone would say has happened if either Jon or Karyn wishes for the truth."
"Perfect! That ought to drive a wedge between them, and keep me out of the line of fire..."
It was then that Sarah heard approaching footsteps on the landing outside. Thinking fast, she clutched the stone and whispered, "I wish I was back in my bedroom and this stone was once more hidden back where I found it!"
Just a moment before the bedroom door opened, the stone granted the wish.