Mary Roberts Rinehart

The Bat Annotated Mary Roberts Rinehart

Elderly, single Cornelia Van Gorder is rental an old, lonely Long Island mansion owned by the estate of Courtleigh Fleming, a bank president who had allegedly died several months before. According to a news report, a mysterious criminal known as "the Bat" has escaped police in the zone. Cornelia is in the house with her maid, Lizzie, and Billy. While Cornelia shows Anderson to his room, Dale warns Brooks that Anderson is detective. Richard shows her a blueprint of the house, with a hidden room where the money might be. Cornelia calls Dr. Wells back to the house to examine Richard's body. Dale asks Wells to hide the blueprint she took from Richard because the others might think that she killed him for it. A masked man is seen in the previously-hidden room taking a money bag from a safe. When they search for the money, Jack finds the body of Courtleigh Fleming, who was killed only recently. When the masked man sneaks in through a window, the unknown man arrests him and reveals that he, the unknown man, is the real Detective Anderson; the Bat had fake to be Anderson.