The hatred is deep. The death is slow. The cause is invisible and silent.You know that Atlanta PD has given up on a case when they call in Dr. Damon Keane. The scientist-sleuth is quietly famous in forensic circles for unraveling the most daunting technical puzzles, but this case is baffling.Two people are already dead. The third victim, a priest, is dying by inches in an Atlanta hospital bed, and the cause is a complete mystery to doctors and police detectives alike. As if matters weren't strange enough, the priest's rosary beads have turned the color of blood.Despite that bizarre transformation, Keane knows that he's not chasing any kind of supernatural entity. The killer is a man--twisted by anger and the lust for vengeance--but still very much human.As the death toll mounts, the killer's trail winds through London's Hyde Park, to the edge of Siberia (home to a thriving black market in nuclear materials), to the backwoods of Georgia. For all of his perception and skill, Keane is always one step behind.Now time is running out. The killer is making his final preparations to murder an entire city. To stop an unthinkable massacre, Damon Keane must find the silent source.