To Kill Or Cure: The Thirteenth Chronicle of Matthew Bartholomew - Susanna Gregory
This was more my area - medieval England - and I greatly enjoyed the rich array of interesting characters. Although I was much more interested in how they would deal with the sly conman pretending to be a doctor (rather satisfyingly as it happened) than the central whodunnit.
LabRat
Athos: If you'd told us what you were doing, we might have been able to plan this properly. Aramis: Yes, sorry. Athos: No, no, by all means, let's keep things suicidal.