Susanna Gregory's Matthew Bartholomew series is and will likely remain my currently favourite Mediaeval mystery series (ever since the death Ellis Peters, whose Brother Cadfael books rank amongst my all time favourite reading pleasures, period). I love the academic setting of Mediaeval Cambridge University (although in this book, in The Mark of a Murderer, Oxford University and a group of fleeing Oxford academics also play a significant role), the slice of life, the historical background of both Mediaeval Cambridge and the fledgling universities, and that many of the recurring characters (like Matthew, Mathilde, Brother Michael, even Matthew's sister and brother-in-law) have become like old and very dear friends. That all being said, I do tend to sometimes wonder at the author's penchant for creating not only some truly gruesome (and creepy) murder plots and ideas, but also at the fact that a goodly number of villains are unstable and warped women (not always, of course, but certainly enough for me to have noticed this a bit lately, and I do find it rather intriguing, but also somewhat troubling that for many of the strangest murder sequences in this series, women are often part and parcel to them). Now don't get me wrong, The Mark of a Murderer has proven to be an engaging read as always, but the method of killing (the monstrous teeth smeared with excrement and filth and the fact that someone, in this case a women, and an intellectual at that, would strive for this type of killing mechanism, would engage in this, simply to keep her academic and scholastic secrets safe, is rather off-putting to say the least). Thus The Mark of a Murderer is suggested mainly for fans of the series as a whole, and is certainly not a novel I would necessarily recommend to someone wanting to start a new Mediaeval mystery series, as I would definitely much more readily and joyfully consider many if not most of the earlier and some of the later Matthew Bartholomew instalments before suggesting The Mark of a Murderer.