Step inside St. Ann's Hospital—where secrets hide behind every door and death waits in the shadows. In this gripping 1929 mystery by acclaimed author Mignon G. Eberhart, nurse Sarah Keate is no stranger to troubled patients—but Room 18 is different. After a tense dinner party on a stormy night, the hospital is plunged into darkness. A patient is found dead. A vital radium treatment is missing. And whispers of murder swirl through the ward.

As suspicion spreads and the body count rises, Sarah must rely on her intuition and resolve to untangle a web of motives among doctors, nurses, and old family secrets. Atmospheric, elegant, and full of slow-burning suspense, The Patient in Room 18 is a vintage medical thriller that launched Eberhart's iconic nurse-sleuth and cemented her reputation as one of America's great mystery writers.