This is a 1937 book by Scottish author John Innes Stewart (writing using the pseudonym Michael Innes) and it is the second book in his mystery novel series featuring Scotland Yard Detective Inspector Sir John Appleby. It is a cozy mystery and a police procedural book. The setting of this case is in 1937 (so it is right before the Second World War with war clouds already on the horizon) in a country house in Sussex and Appleby was able to solve the case with help from his friend Giles Gott and a few others. I am not very impressed by the book. I find the various red herrings unnecessarily long and divertive. In the end, when the surprise ending came, you look back and feel that little efforts have been spent developing the clues to help readers to reach that conclusion. It is definitely not a fair-play clue-based detective novel. Too much time are spent on side issues and not enough on the main plot.
Spoiler Alert. The core of the story is built around William Shakespeare’s famous play The Tragedy of Hamlet. I do find having read Hamlet does enhance my enjoyment of this book given the various literary references to the classic in the story. For example, it is kind of funny that the murder weapon was found inside Yorick’s skull. Also, having an understanding on how the Polonius murder scene work helps understand how the actual murder can be committed. Having said that, it is not an absolute prerequisite because Innes did give enough pointers and explanations to describe the key features of the play. The story starts out with the Duke and Duchess of Horton organizing a big country house weekend party (with hundreds attending) with the main attraction as an amateur production of Shakespeare’s The Tragedy of Hamlet. The play was to be produced by Elizabethan theater scholar Giles Gott (who also happens to be a detective mystery novel author and a very good friend of Appleby). While the Duke and the Duchess have roles in the play, they also invited many famous guests to participate, including famous actor Melville Clay to play Hamlet and the Lord Chancellor of England, Lord Auldearn, to play Polonius. One complaint I have about the book is that it does have too large a cast of characters.
During the play in the country house, at Act Three, Scene iv, line 23 in Hamlet, Hamlet (played by Clay) was supposed to kill Polonius (played by Lord Auldearn) who was hiding behind a screen. At that very moment, instead of Clay slicing through the screen, a shot was heard. Later it was discovered somebody has shot Auldearn dead. The Duke immediately sealed off the stage area, pending police arrival, which helped limited the number of suspects. Appleby, who was in London at the time, was ordered by the Prime Minister himself to immediately travel to Scamnum Court to oversee the investigation. It soon became clear that three separate crimes might be involved. Auldearn at the time of his death was carrying on his person a highly sensitive secret treaty which some foreign spies are trying to steal. With a huge party going on at Scamnum Court that weekend, the government has received information that some unidentified spies are at work there. It was also known that a famous safe cracker, Happy Hutton, has been seen in the neighborhood. Hutton’s specialty is to dress up as a society gentleman and gate crash into society parties during which he would crack the safes in the country house and steal jewelries. Even though Lord Auldearn’s safe in his guest room in Scamnum Court was broken into, Appleby soon concluded it was not related to his murder and it was just part of Happy Hutton’s safe cracking robbery. Appleby, however, struggled with whether the murder was against Auldearn in his personal capacity or whether it was related to the spies trying to steal the treaty. It turned out Auldearn was very clever in hiding the treaty. He hid it in the prop he has to carry as Polonius so he always has it with him. However, after the treaty was uncovered on his body after his death, the question became whether the spies copied the treaty and returned the original to Lord Auldearn’s body so it can be found later, or whether they never found the treaty.
While Appleby’s preconceived notion is that spies normally do not need to resort to murder to steal treaties, so Auldearn’s murder probably is personal instead of business in nature, it turns out Auldearn was actually murdered by spies to get his treaty instead of for personal reasons. Ultimately, Appleby was able to uncover it was actually a clever spy with theatrical flair who deliberately tried to build diversions to let people think that the murder is an independent act and the treaty is never in danger. The spy mastermind was the famous actor Melville Clay (who played Hamlet). He, together with his accomplice Anna Merkalova, set up a plot to frame another guest at the party, Sir Richard Nave, for the murder. They first sent five different warning messages to five different people involved in the play in the days preceding the murder. They involve messages like “Hamlet, Revenge!” (hence the book’s name) as well as references to a person called Raven. Raven is of course, an anagram for the name “R. Nave”, which is Sir Richard Nave, a Harley Street psychiatrist who was at the country house for the weekend party. The real murderer also planted another red herring for Appleby. One of the guests was an old rival of Lord Auldearn, David Malloch. It turns out 40 years ago, when both Malloch and Lord Auldearn were in university, they were archrivals and have even fought a duel. Appleby finally concluded that was a red herring. Giles, in helping Appleby, concluded Sir Richard was the murderer because of the messages with references to Hamlet, Revenge.
Thankfully, Appleby saw through all that and, with help from the daughter of the Duke and Duchess, Lady Elizabeth, was able to uncover the fact that Clay was the real murderer (with help from Merkalova) and it was Clay who had actually stole the treaty, dictated the terms verbatim into a dictaphone recording cylinder, then returned the treaty to Lord Auldearn’s dead body. Just when Clay and Merkalova were trying to get away with the recording of the treaty, Appleby and the cavalry arrived. Both spies died in a shootout.