Dr. Iris Kincaid witnesses a murder she was never supposed to see. One moment, she’s working a routine shift in the emergency department. Next, a patient is executed in front of her by an assassin tied to the Consortium—a global criminal syndicate that owns judges, politicians, and the justice system itself. Now Iris is a marked witness with a death sentence. Her only chance of survival is Deputy U.S. Marshal Boyd Vance. Known as the Hammer, Boyd is the most feared operative on Task Force 9, an off-the-books U.S. Marshals unit deployed when standard law enforcement is no longer enough. Hard. Calculating. Built for violence. Boyd doesn’t protect witnesses—he neutralizes threats. His extraction plan is simple: disappear Iris. Off-grid. Deep in the mountains. Inside the Glass House, a fortified safehouse designed to survive siege warfare. Then a blizzard traps them together. Snowed in with a lethal protector whose control is as dangerous as the killers hunting them, Iris discovers the man beneath the weapon. Every shared breath strips away another boundary. Every touch ignites a fire neither of them can afford. But the Consortium finds them. Now Boyd and Iris are trapped in a fortified mountain safehouse, outgunned, isolated, and running out of time. Boyd was assigned to protect a witness. He’ll become the most dangerous thing in the storm to keep her alive. Boyd: Lethal Vitals is a pulse-pounding romantic suspense thriller packed with elite U.S. Marshals, witness protection, forced proximity, snowed-in survival, tactical action, obsessive protection, and explosive chemistry.