Georgette Heyer 
Christmas Party 

Previously titled Envious Casca Tis the season to find whodunit It is no ordinary Christmas at Lexham Manor. Six holiday guests find themselves the suspects in a murder inquiry when the old Scrooge who owns the substantial estate is found stabbed in the back. Whilst the delicate matter of inheritance could be the key to this crime, the real conundrum is how any of the suspects could have entered the locked room where the victim was found, to commit this foul deed. For Inspector Hemingway of Scotland Yard, the investigation is also complicated by the fact that every guest at Lexham Manor is hiding something casting suspicion far and wide