From Dorothy L. Sayers, one of the Queens of Crime, comes the third addition to the Lord Peter Wimsey series, Unnatural Death. "The death was certainly sudden, unexpected, and to me mysterious," is what the letter from Dr. Paterson read. Lord Peter Wimsey and his friend, Chief Inspector Charles Parker, go on to discuss the associated case over dinner, unaware that they are being overheard by another. The bystander, Dr. Carr apologetically...