Written by Gladys Mitchell. a neglected mansion and a lodge. Influenced by his ex-fiancee Niobe, who volunteers to look after his business arrangements, Chelion allows the huge house to be turned into flats to let. When one tenant, Mill Minnie - who claimed to be the rightful heiress - is found dead in her bed, the verdict is murder ... Dame Beatrice Lestrange Bradley is called in and she works tirelessly amongst the community to solve the mystery of who killed Miss Minnie. career. She wrote over sixty novels featuring 'Beatrice Bradley' a consultant psychologist to the Home Office.