This is Gabaldon's first novel in the Lord John series, who was also in the Outlander series as a minor character. Lord John Grey is an officer of the army in 1757 and is appointed to investigate a fellow serviceman's death, whom was suspected of being a traitor. Grey investigates this mystery while also trying to determine if the man betrothed to his niece is poxed. These investigations take him to the bawdy houses of London where the two items he's investigating start to merge in to one investigation.
I remember John Grey from the Outlander series (after I did a bit of research online) and I remembered him being a wussy character without much backbone. That wasn't the case here, which didn't sit right with me. You can't portray a character one way in one of your series and a completely different way in another series. Grey was much more enjoyable in this novel than he was in the Outlander series because he went about things independently and didn't come off as cowardly.
This story is pretty complex. I was interested in figuring out who had done what, however it then took Gabaldon about 50 pages to explain the mystery. Surely things are a bit too complex if it takes you that long to explain?
Those are two minor complaints for this book, which is interesting.
First Line: "It was the sort of thing one hopes momentarily that one has not really seen - because life would be so much more convenient if one hadn't."