Mason Black Series

After handing in his detective badge, Mason Black now lives a stable life as a private investigator. But when the bodies of two children are discovered with messages written in blood, the pattern of a familiar killer emerges. Now, the Carter twins are missing, and only Mason can help. With his unique knowledge of the killer, he has an advantage over the San Francisco Police Department. While his marriage falls apart, he must choose between repairing his life and opening doors that were meant to stay closed. The Lullaby Killer is on the hunt, and Mason Black is always a step behind.

It's been one year since the Lullaby Killer was punished for his crimes, and Mason Black's life has already improved. His PI business is thriving, his family life is stronger than ever, and after years of misery he's finally happy. It's a shame it has to end. Three bodies have been discovered with accusing messages carved into the skin. Hiding below the police radar, Mason flees across San Francisco in search for answers, desperate to find his tormentor before the SFPD arrest him. His only clue? Somebody wants revenge, and they'll stop at nothing to take it.