Case of Margaret Cavendish, Duchess of Newcastle

When archivist Perpetua Maria Voss finds a cedar box hidden behind the wrong shelf at Chatsworth, she expects a cataloguing error. What she finds instead is a three-hundred-year-old warning, encoded in the pages of a real 1666 novel by Margaret Cavendish, Duchess of Newcastle -- and a hollow in the velvet exactly the shape of a vanished vial.The trail leads through Cambridge archives, a sealed roo...