This medieval mystery has a modern slant. Not in an obnoxious way, but in its writing: thankfully it's not written in some pretend version of Olde English (which I've encountered in other novels). It is a little anachronistic but much less irritating than the occasional
'twas and thee and so forth to give it that medieval flavor.
It wasn't the best as a mystery, though the twist was a bit of a surprise (not a huge one, but something of one), but the characters are nicely drawn and those who are supposed to be likable are. For the most part. The setting is extremely well-drawn (or at least seems to be for someone who doesn't know much about medieval France). It's an enjoyable bit of mystery fluff for those times when you want light reading.