341 pages. The third Sarah Keate novel, a closed-house mystery. Keate was a mystery-solving nurse and one of the first female series characters in the mystery genre (the first Miss Marple novel was published in 1930, a year after Keate's first mystery). The novel was filmed as Mystery House in 1938, directed by Noel M. Smith and starring Ann Sheridan and Dick Purcell. Eberhart was a prolific novelist and she was sometimes called the American Agatha Christie, reflecting both her popularity and the longevity of her career, spanning sixty years between her first mystery (1929) and her last (1988). First edition (first printing). Very good in a very good dust jacket. The top and bottom edges of the jacket are strengthened with tape on the verso (back).