Unbelievable condition. A former friend presents Sally Fielding with an overpowering problem. Sally's past is spotless except for one tragic mistake and Isabel is about to forcer her to pay dearly for that slip. Susupense rises to a crashing climax as Isabel spins her web of Evil. Quote from the back cover "Del 10 cent books are a new series in publishing that makes it possible for yout p pocket a handful of several different books for a small price"
Mysteries of the well-known American writer Mary Roberts Rinehart include The Circular Staircase (1908) and The Door (1930).
People often called this prolific author the American version of Agatha Christie. She is considered the source of the phrase "The butler did it," though the exact phrase doesn't appear in her works, and she invented the "Had-I-But-Known" school of mystery writing.
Rinehart wrote hundreds of short stories, poems, travelogues, and special articles. Many of her books and plays were adapted for movies, such as The Bat (1926), The Bat Whispers (1930), and The Bat (1959). Critics most appreciated her murder mysteries.