A riveting psychological thriller inspired by the never-caught Zodiac Killer, about a young detective determined to apprehend the serial murderer who destroyed her family and terrorized a city twenty years earlier. Caitlin Hendrix has been a Narcotics detective for six months when the killer at the heart of all her childhood nightmares reemerges: the Prophet. An UNSUB—what the FBI calls an unknown subject—the Prophet terrorized the Bay Area in the 1990s and nearly destroyed her father, the lead investigator on the case. The Prophet’s cryptic messages and mind games drove Detective Mack Hendrix to the brink of madness, and Mack’s failure to solve the series of ritualized murders—eleven seemingly unconnected victims left with the ancient sign for Mercury etched into their flesh—was the final nail in the coffin for a once promising career. Twenty years later, two bodies are found bearing the haunting signature of the Prophet. Caitlin Hendrix has never escaped the shadow of her father’s failure to protect their city. But now the ruthless madman is killing again and has set his sights on her, threatening to undermine the fragile barrier she rigidly maintains for her own protection, between relentless pursuit and dangerous obsession. Determined to decipher his twisted messages and stop the carnage, Caitlin ignores her father’s warnings as she draws closer to the killer with each new gruesome murder. Is it a copycat, or can this really be the same Prophet who haunted her childhood? Will Caitlin avoid repeating her father’s mistakes and redeem her family name, or will chasing the Prophet drag her and everyone she loves into the depths of the abyss?

In this exhilarating thriller inspired by real-life serial killer Ted Bundy, FBI profiler Caitlin Hendrix faces off against a charming, merciless serial killer. In Southern Texas, on Saturday nights, women are disappearing. One vanishes from a movie theater. Another, from her car at a stoplight. A mother is ripped from her home while checking on her baby. Rookie FBI Agent Caitlin Hendrix, newly assigned to the FBI's elite Behavioral Analysis Unit, fears that a serial killer is roaming the dark roads outside Austin. Caitlin's unit discovers the first victim's body in the woods, laid out in a bloodstained white baby-doll nightgown. A second victim in a white nightie lies deeper in the forest's darkness. Around the bodies, Polaroid photos are stuck in the earth like headstones, picturing other women with their wrists slashed. The women in the woods are not the killer's first victims, nor are they likely to be his last. To track the UNSUB, Caitlin must get inside his mind; he is a confident, meticulous killer, capable of charming his victims until their guard is down, snatching them in plain sight. He then plays out a twisted fantasy - turning them into dolls for him to possess, control, and ultimately destroy. Caitlin's profile leads the FBI to focus on one man: a charismatic, successful professional who easily gains people's trust. But can they apprehend him before it's too late? As Saturday night approaches, Caitlin and the FBI enter a desperate game of cat and mouse, racing to capture the cunning predator before he claims his next victim.

I am the legion of the night … He appears in the darkness like a ghost, made of shadows and fear—the Midnight Man. He comes for the parents but leaves the children alive, tiny witnesses to unspeakable horror. The bedroom communities of Los Angeles are gripped with dread, and the attacks are escalating. Still reeling from her best friend’s close call in a bombing six months ago, FBI behavioral analyst Caitlin Hendrix has come to Los Angeles to assist in the Midnight Man investigation and do what she does best—hunt a serial killer. Her work is what keeps her going, but something about this UNSUB—unknown subject—doesn’t sit right. She soon realizes that this case will test not only her skills but also her dedication, for within the heart of a killer lives a secret that mirrors Caitlin’s own past. Hesitancy is not an option, but will she be able to do what must be done if the time comes?

What happens when two serial killers begin to compete with each other? From #1 New York Times bestselling author Meg Gardiner comes a new high-octane thriller in the acclaimed UNSUB series. FBI Special Agent Caitlin Hendrix faces a case from nightmares. In a Tennessee prison, Efrem Judah Goode draws haunting portraits of women he claims he has killed. Around the country, desperate families of the missing seek answers in his eerie drawings. And on darkened back roads and New York City streets, a new killer poses duct-taped bodies at the sites of Goode’s murders. Two serial killers are locked in a twisted rivalry. To stop the brutal slayings, FBI profiler Caitlin Hendrix must unravel the connection between Goode and the Broken Heart Killer. Their warped competition destroys anyone in their path. Caught between a manipulative psychopath and a ruthless UNSUB, Caitlin has to dive into not one, but two dark and twisted minds. She will risk everything, plunging into the depths of their depraved clash to hunt down an unstoppable killer.