The book ‘India Black and the Widow of Windsor’ is written by Carol K. Carr. ‘India Black and the Widow of Windsor’ is the 2nd book in the Madam of Espionage Mysteries series. The story is about India Black, Her Majesty’s favorite spy. When Queen Victoria attends a meeting, the spirit of her late husband Prince Albert insists that she spend Christmas at their Scottish home at Balmoral.