This book was only ok for me; I read the first in the series ("Alehouse Murders") which I vaguely remembered as being historically accurate if rather slow-moving, but I liked the main characters and thought they had promise. Maybe I need to go back and read the series in order to appreciate it more, but in this book the slow pacing, dull dialogue and habit of every character to take a full paragraph of internal dialogue to explain their motivation (too much telling, not showing), plus an almost total lack of humor or human warmth made this one a real chore to finish.
I read a lot of historical mysteries, particularly medieval ones with religious sleuths like Sir Bascot, and expect the tone to be somewhat dark, serious and somber - life back then was often nasty, brutish and short as fans of the genre know! But despite finding Bascot as charming as ever (along with Roget, his friend and captain of the town guard and thus the Watson to Bascot's Holmes), several of the characters were just too grim, humorless and one-dimensional. Two bright spots were the interaction between Bascot and Roget, and Roget and Constance, a perfumerer in Lincoln who lives next door to one of the victims; her warmth and humor made the rest of the cast seem even more like cardboard cutouts by comparison. Granted, we're talking about murder here, which is of course serious business, but in other series I've enjoyed (Frazer's Dame Frevisse, Alys Clare's Abbess Heloise, Doherty's Brother Athelstan, the incomparable Brother Cadfael) there was a spark of humanity, warmth, spirituality, faith and optimism - the feeling that despite the terrible crime committed, life would go on, good would triumph.
With this book I got too bored to care and started skimming about two-thirds through; *SPOILER ALERT* I felt that the opening scene in Acre when the unnamed Templar says he has to do something before he gets too weak and the leper procession right after the first murder in Lincoln was foreshadowing that the murderer was a leper, and I was right. I felt the motive and explanation, however, were WAY too complicated and involved and not really fair play; it seemed more like real life, I'll give the author that, in that it was a chance association followed by a chance meeting on the other side of the world that brought about the murders. But from a mystery reader point of view, it didn't seem fair in that we have no idea who this person is, no real clues given, until a very tenuous minor possible connection is spotted and put forth by Gianni, a young clerk (and Bascot's former ward). So, while I see that several readers have enjoyed this book and the rest of the series, I won't rush to pick up the rest of the series, as it is a little too slow for me and there are several other authors in this genre I'd rather read.