Dark Advent: The Vatican Knights Series, Book 8 (Unabridged‪)‬

Growing up with a sheltering mother and a belligerent father, Kimball Hayden's young life goes from one of innocence to the depths of chaos. When a vicious syndicate of murderers and extortionists begin to run the streets, Kimball soon becomes the focal point of their attention. His family is placed within the crosshairs, friends go missing or are found dead, all messages from the Gangster Prince. But when Kimball's world shatters and he grieves a great loss, the sleeping giant within him awakens. It is dark and ugly and exists with the cold fortitude of a machine. It rises and walks a fine line between the Darkness and Light. And it will define Kimball as a dark savior for the rest of his life, choosing damnation over salvation to protect those who cannot protect themselves. But then the Gangster Prince quickly discovers that he may have overstepped his boundaries at the approach of an unstoppable force, he realizes one thing: that every legend has a beginning.