Jon wished that he and Karyn would appear in the room with the PA system.
"I'm not sure this is such a great idea, Jon."
But Jon wasn't listening. He knew that this was a good idea and he was going to go the whole nine yards with it. Before he made his wish over the PA system, he decided to do something about his voice. Karyn was right to advise him about that.
"I wish that the people who hear me over the PA system wouldn't recognize my voice." The stone glowed. "There, that's better."