(The national bestseller LIFELINES felt "like all the best episodes of ER and Grey's Anatomy squeezed into one breathtaking novel" (Hilton Head Magazine). With WARNING SIGNS, CJ Lyons returns to the front lines of the struggle between life and death...

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...

Praise for National Bestseller LIFELINES:

"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."--The Baltimore Sun

"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

Recommended to book clubs by 1 of 1 members.