Ex-convict Bunker proved he could write a strong, dark thriller with his first book, No Beast So Fierce. For his latest effort, he returns to the same kind of story -- smart but doomed ex-cons doing the only kind of thing they know how to do. Troy Cameron came from a wealthy Beverly Hills family before reform school and San Quentin knocked off some of the polish. Now he has linked up with a pair of psychopathic colleagues to prey on other criminals. In Bunker's hands, the material takes on a great deal of energy and even sympathy for the devils.