A suspect behind bars. A desperate father. In a case this shadowy, the truth is easy to hide.Six teenagers dead. Finally, the killer behind bars. But are the games just beginning?Psychiatrist Dr. Gwen Moore is an expert on killers. She’s spent a decade treating California’s most depraved predators and unlocking their motives—predators much like the notorious Bloody Heart serial killer, whose latest teenage victim escaped and then identified local high school teacher Randall Thompson as his captor. The case against Thompson as the Bloody Heart Killer is damning—and closed, as far as Gwen and the media are concerned. If not for one new development…Defense attorney Robert Kavin is a still-traumatized father whose own son fell prey to the BH Killer. Convinced of Thompson’s innocence, he steps in to represent him. Now Robert wants Gwen to interview the accused, create a psych profile of the killer and his victims, and help clear his client’s name.As Gwen and Robert grow closer and she dives deeper into the investigation, grave questions arise. So does Gwen’s suspicion that Robert is hiding something—and that he might not be the only one with a secret.

    It may be the start of a scientific experiment that could alter the human race forever--and reveal a shocking truth about our future.Experience the groundbreaking novel that will change everything you think you know about pandemics--and how to survive one.“Reads like a superior collaboration between Dan Brown and Michael Crichton.”—The GuardianNow an Amazon Charts and Wall Street Journal bestseller.A hundred miles north of Alaska, a US Coast Guard vessel discovers a sunken submarine at the bottom of the Arctic Ocean. It has no national identification and doesn’t match the records of any known vessel. Deep within, researchers find evidence of a scientific experiment that will rewrite our basic understanding of the human race.In Atlanta, Dr. Peyton Shaw is awakened by the phone call she has dreaded for years. As the CDC’s leading epidemiologist, she’s among the first responders to outbreaks around the world. It’s a lonely and dangerous job, but it’s her life—and she’s good at it. This time, she may have met her match.In Kenya, an Ebola-like pathogen has infected two Americans. One lies at death’s door. With the clock ticking, Peyton assembles her team and joins personnel from the Kenyan Ministry of Health and the WHO. What they find in the remote village is beyond their worst fears. As she traces the origin of the pathogen, Peyton begins to believe that there is more to this outbreak—that it may be merely the opening act in a conspiracy with far reaching consequences.In Berlin, Desmond Hughes awakens in a hotel room with no memory of how he got there or who he is. On the floor, he finds a dead security guard from an international pharmaceutical company. His only clue leads him to Peyton Shaw—a woman who seems to know him, but refuses to tell him how. With the police searching the city for him, Desmond desperately tries to piece together what happened to him. To his shock and horror, he learns that he may be involved in causing the outbreak—and could hold the only key to stopping it.As the pathogen spreads around the world, Peyton and Desmond race to unravel the conspiracy behind the pandemic—and uncover secrets some want to keep buried. With time running out, they face an unimaginable decision.Buy now and begin the journey (or read for free in Kindle Unlimited).Selected Praise and Published Reviews“I finished the book fast because I just couldn’t wait...”—WIRED GeekDad on Departure“Riddle makes an effort to keep the focus on how his characters react to each other (including to their future selves) rather than to the technological marvels that reshaped their world.”—Publisher’s Weekly on Departure“Well-constructed and tightly-wound as a fine Swiss watch—Departure has non-stop action, an engaging plot and, of course, wheels within wheels.”—Diana Gabaldon, #1 New York Times bestselling author of Outlander on Departure About Pandemic