The Seat of the Scornful is by John Dickson Carr. The fourteenth book in the Golden Age historical fiction Gideon Fell mystery series. Gideon is visiting a friend who is a very pompous judge - who never believes he is capable of a mistake and plays cruel cat and mouse games with those who find themselves in his courtroom. When the man who wishes to marry his daughter is found murdered in the judge's home, he denies killing the man, but all evidence points to his guilt. Fell must discover if his friend is guilty of murder, or if he is telling the truth. An incredibly convoluted mystery, with more red herrings than you can count. The ending is quite discussion worthy. Great for a book club, you don't need to be familiar with any of the other books to read this one.
Ratings: 8th grade - 9 out of 10 - V (violence).