The Black Cat Murders by Karen Baugh Menuhin
I'm becoming rather fond of this series. This time around, Lenox visits another country house, this time the home of a childhood friend for her wedding celebration. There are several activities leading up to the wedding including a couple of operas performed in the theater on-site. (Yeah, several of the guests find this a bit odd, too.) During one of these performances, a man is killed when a trapdoor gives way under him. It's considered an accident at the time, but the doctor thinks it's fishy and asks Lenox to do a bit of investigating while he's there.
Lenox is in the difficult position of helping Scotland Yard's investigating, pursuing his own leads, and not disrupting the wedding party. I liked how everything wound together, the paintings, the various characters, the swords. I felt all the clues fell together well, although I'm not sure I actually liked who the culprit turned out to be. It made sense, but only up...