The call

When Gerard enlists the help of his good friend Kate Bryar to help him fight off the evil spirits that has captured Mikey and the others. Kate is Bob's little sister by 2 years but is very involved with her big brother and his friend's. Kate has a few secrets of ger own. Will Gerard and Kate succeed? What will happen to the others? Read to find out.
Warning: This is my first book so please bear with me.