The Unpleasantness at the Bellona Club by Dorothy Sayers

I enjoyed this mystery. An elderly gentleman is found dead in his armchair at the Bellona Club on Armistice Day, and the time of his death becomes important for the resolution of his estranged sister's will. Lord Peter Wimsey agrees to step in and investigate. There's a partial solution about half-way through the book, which I was able to anticipate, but I was surprised by the revelation of the murderer. While not the best of Sayers's work, this novel kept me interested and guessing till the end.