Description Mary Roberts Rinehart (1876-1958) was an American writer, often called the American Agatha Christie. She is considered to have invented the "Had-I-But-Known" school of mystery writing.
Description Mary Roberts Rinehart (1876-1958) was an American writer, often called the American Agatha Christie. She is considered to have invented the "Had-I-But-Known" school of mystery writing.