She keeps house for Inspector Witherspoon . . . and keeps him on his toes. Everyone's awed by his Scotland Yard successes-but they don't know about his secret weapon. No matter how messy the murder or how dirty the deed, Mrs. Jeffries's polished detection skills are up to the task . . . proving that behind every great man there's a woman-and that a crimesolver's work is never done.A two-story killer.Train enthusiast Francis Humphreys took his last breath while relatives and neighbors visited downstairs. But if everyone was downstairs, who could have stolen into Uncle Francis's study, killed him, and escaped? Mrs. Jeffries will have to lend her downstairs common sense to this upstairs murder mystery.