This image is the cover for the book Catalyst, Angels of Mercy Medical Suspense

Catalyst, Angels of Mercy Medical Suspense

A medical student investigating mysterious patient deaths begins experiencing the same deadly symptoms herself in this thriller by the author of Lifelines.

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.

Praise for CJ Lyons’s Thrillers with Heart

“Pulse-pounding . . . whirlwind action scenes and top-notch medical details.” —Lisa Gardner

“Readers who prefer their medical thrillers to have characters with beating hearts and three dimensions are well advised to pick up this series debut.” —Newsday

“Tense, whip-smart medical scenes . . . a gripping view of doctors at work.” —Tess Gerritsen

“[A] spot-on debut . . . a breathtakingly fast-paced medical thriller.” —Publishers Weekly

CJ Lyons

New York Times and USA Today bestselling author of over forty novels, former pediatric ER doctor CJ Lyons has lived the life she writes about in her cutting-edge Thrillers with Heart. CJ has been called a “master within the genre" (Pittsburgh Magazine) and her work has been praised as “breathtakingly fast-paced” and “riveting” (Publishers Weekly) with “characters with beating hearts and three dimensions” (Newsday). Her novels have twice won the International Thriller Writers’ prestigious Thriller Award, the RT Reviewers’ Choice Award, the Readers’ Choice Award, the RT Seal of Excellence, and the Daphne du Maurier Award for Excellence in Mystery and Suspense. Learn more about CJ’s Thrillers with Heart at www.CJLyons.net