Fatal Rendezvous — Paul Weightman

It's 1773. Career diplomat Benjamin Hackett returns to York and the shocking news his estranged elder brother, has not only killed his friend in a duel but become engaged to the woman he had hoped to marry. To learn more about the suspect duel, Benjamin reluctantly attends a weekend house party to celebrate his brother's engagement. House guests get more than they bargained for when a lady's maid is murdered, the bride-to-be attacked, and a guest is shot dead. Benjamin uncovers a connection between these sinister acts and his brother's duel. He must also confront a cruel twist of fate that explains why his brother loathes him and will go to any lengths to discredit him in Polite Society.