Arthurian murder mystery, narrated by Sir Kay, who is in love with Guenevere; nicely done unreliable narrator (within strict and easily parseable limits), decent Mordred.
The Idylls of the Queen is one of my favorite, if not my absolute favorite, Arthurian novel. Undoubtably this is due to the fact that it is told from the point of view of Sir Kay, whom I always felt sorry for (it's a elder sibling thing). Karr, however, does know the medieval tradition upon which ...