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"A great fast-paced read….Not to be missed for fans of ER and Grey's Anatomy." ~4 ½ Stars, Book Addict A medical student investigating the mysterious deaths of patients begins to experience the same deadly symptoms herself.On rotation at Pittsburgh ’s Angels of Mercy Hospital and struggling to finish medical school, Amanda Mason can’t afford to make any mistakes—or to reveal a troubling secret. Mysterious symptoms that defy diagnosis have been affecting her performance, and as she struggles to keep control, the only person who seems to notice is the irritatingly observant and sexy Dr. Lucas Stone.But when one patient showing the same strange symptoms dies and another slips into a coma, Amanda realizes the clock is ticking on her own survival. With the help of her friends—Gina, a roommate recovering from her own trauma; Lydia, a streetwise ER attending; and Nora, a by-the-book charge nurse—Amanda must solve this medical mystery before she becomes the next victim... (previously published as Warning Signs) Want more Angels of Mercy Medical Suspense? Check out the complete LIFELINESCATALYSTTRAUMAISOLATIONAnd download the Free Angels short story, TOXICITY, at CJLyons.net Praise for CJ's Thrillers with “CJ Lyons scores a major triumph...Totally absorbing and impossible to put down.” ~Douglas Preston, New York Times bestselling author “A heroine you'll never forget and a story that whips by at bullet speed. It's easy to see why CJ Lyons is a perennial on the bestseller lists." ~Tess Gerritsen, New York Times bestselling author"A high stakes adventure with dire consequences." ~New York Times bestselling author Steve Berry"I love how the characters come alive on every page." ~New York Times bestselling author Jeffery Deaver "Everything a great thriller should be—action packed, authentic, and intense." ~#1 New York Times bestselling author Lee Child"CJ Lyons continues to mesmerize readers…pulse-pounding." ~Fresh Fiction Lyons "is a master within the genre." ~Pittsburgh Magazi