Jon's little brother Mikey was in his bedroom, reading one of his comic books.
Suddenly, he heard Jon's voice, which was very strange, because he wasn't in his bedroom.
"I just need to figure out what Sarah did with the stone. Hopefully, it wasn't anything too bad," Jon's voice said.
"Jon?" Mikey asked. "Where are you?"
No one answered, obviously, because there was no one there. The thing was, Jon wasn't even really talking to him ... or even talking period. Thanks to Jane's wish, Mikey could now hear every one of his brother's thoughts.
He had become a mind reader, but he could only read Jon.