The Adventures of PB and Jay: Fortune Teller's Coin

PB's little brother, Cal, dares her to do it. So she has go. She has to visit the carnival's fortune teller. A super strange woman stares into her crystal ball. Then she claims someone close to PB will betray her. Ridiculous. Right? As PB leaves, the fortune teller gives her a small coin - a reminder of her warning. PB tries not to believe, but she carries the coin wherever she goes. Then the very next day PB helps a new boy, Adam, with his classwork. And her best friend, Jay, claims Adam is only pretending to be nice. And PB gets mad. Then Jay gets mad. And now there are mean whispers going around school about PB and Adam. Could the fortune teller's warning be right? Has Jay betrayed her by starting ugly rumors? Because, after all, PB always figured nobody was closer to her than Jay.