The Windsor Knot

One morning at Windsor Castle, Queen Elizabeth discovers that one of her guests has been found murdered in his room. When the police begin to suspect her servants, Her Majesty knows they are looking in the wrong place. Away from the public eye, she has a knack for solving crimes. With her household's happiness on the line, her secret must not get out. Can the Queen catch the killer, without getting caught herself? The first book in a highly original and delightfully clever crime series.