"I wish Tina would never find out that I'm actually her best friend Cassandra from her previous life," Karyn said. The stone glowed, granting her wish.
After Cassandra found out about this wishing stone, she possessed the body of Karyn and used the girl to obtain the stone for herself. She wanted to bring back her best friend Tina who had died many years earlier. She figured that this was the best way to do it. Cassandra essentially got rid of the owner of the stone and his best friend. Yes, she wasn't going to give up Karyn's body. She liked it and intended on keeping it for the rest of her life.
