The Wrong Number (Fear Street Book 5)

It begins as an innocent prank: Deena Martinson and her best friend, Jade Smith, make sexy phone calls to the boys from school. But Deena€s half-brother, Chuck, catches them in the act and threatens to tell their parents€"unless the girls let him in on the fun. Chuck begins making random calls, threatening anyone who answers. It€s dangerous and exciting. The teens are even enjoying the publicity and the uproar they€ve caused.

Until Chuck calls a number on Fear Street.