"I wonder how the cops will interpret the scene-random, brutal, senseless. They will not see the design, the order, the absolute absence of chaos." When a cold case spiral resurfaces, the evidence points back to one of their own. FBI Special Agent Dirk Trainor must confront the unthinkable: is one killer learning to be two-or is something far darker linking blood, geometry, and murder? "Self-control is the only thing that separates the hunter from the idiot." This tense, forensic thriller blends procedural precision with psychological suspense, pulling readers into a labyrinth of adoption records, staged crime scenes, and a spiral signature that grows more perfect with every kill. Haunted by fugue-like visions and a DNA result that undercuts everything he believes about himself; Trainor and his partner Jill Quarters must race against time before the spiral claims its next victim. Why You'll Be Hooked - Cold case thriller with forensic detail - perfect for fans of procedural crime fiction and serial killer mysteries. - Unique spiral cross signature murders - a chilling motif that ties decades of ritualistic killings together. - High-stakes FBI investigation - DNA evidence points inward, forcing Dirk Trainor to question his own identity. - Psychological suspense meets procedural accuracy - blending adoption secrets, family bloodlines, and geometric violence. - Page-turning tension - every lead risks another body, every wrong move feeds the spiral. Hook for Readers A decades-long series of ritualistic murders. A spiral signature carved with impossible precision. A DNA result that points back to the hunter himself. Will Dirk Trainor prove his innocence-or become the next victim of the spiral?