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She won Macavity and Anthony Awards for 1995's Under the Beetle's Cellar.
Mary Willis Walker (1942) is an American author of crime fiction. She began writing in her mid-forties publishing her first thriller Zero at the Bone in 1991 which she won an Agatha Award for. In 1994 she began writing her Molly Cates series with the book The Red Scream for which she won an Edgar Award.