Run Scared — Mignon G. Eberhart

The Lady And The Corpse...

She was sure she had killed him. She had seen him lying on the lonely country road, a little rat-faced man, in a raincoat...

An hour later, he had vanished, like a bad dream. Everyone told her to forget him... But she soon met the man again, when she looked into the still waters of a lake -- and saw the entire fabric of her life turned into a waking nightmare...