Get drawn into a novel of medical suspense that begins with these chilling questions: Who ends up with the blood samples you routinely give for tests? What else are they being used for? Why don’t you know?

Take a Deep Breath....

From Boston, a disgraced medical student travels to South America to deliver a research paper that could save her career and becomes a victim of an unspeakable crime.… Thousands of miles away, a brilliant, reclusive scientist, dying from an incurable disease that threatens to make each tortured breath his last, is on the verge of perfecting a serum that could save millions of lives, and bring others inestimable wealth.… In Chicago, a disillusioned private detective, on the way to his third career, is hired to determine the identity of a John Doe, killed on a Florida highway, with mysterious marks on his body.

Three seemingly disconnected lives, surging unrelentingly toward one another. Three lives becoming irrevocably intertwined. Three lives in mounting peril, moving ever closer to the ultimate confrontation against a deadly secret society with godlike aspirations and roots in antiquity.

Medical student. Scientist. Private eye. Three people who will learn the deeper meanings of brilliance and madness, truth and deception, trust and betrayal.

Three lives linked forever by a single vial of blood—the fifth vial.

Michael Palmer (1942-2013) wrote internationally bestselling novels of medical suspense, including The First Patient, The Second Opinion, The Last Surgeon, A Heartbeat Away, Oath of Office and Political Suicide. His book Extreme Measures was adapted into a movie starring Hugh Grant and Gene Hackman. His books have been translated into thirty-five languages.

Palmer earned his bachelor’s degree at Wesleyan University, and he attended medical school at Case Western Reserve University. He trained in internal medicine at Boston City and Massachusetts General Hospitals. He spent twenty years as a full-time practitioner of internal and emergency medicine. In addition to his writing, Palmer was an associate director of the Massachusetts Medical Society Physician Health Services, devoted to helping physicians troubled by mental illness, physical illness, behavioral issues, and chemical dependency. He lived in eastern Massachusetts.

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