This one starts off where the last one left off. Andrea Allen and her mother are headed off to Andrea's grandma's place. Before they left, Andrea found the device in her father's clothes. When she got to her grandma's, she tried it out. At school, she let two of the girls try it out. They become friends. The principal suspects that the strange happenings in the school are connected to the girls. Will she find out about the device, or can they keep it secret?