Another re-read. I really like this series and this book has a lot going for it. There's the stand-alone mystery where Morton is researching Mr. Coldrick, a man who hired him and then killed himself on the same day. Morton is suspicious and then bad things start to happen. The long-term mystery of who Morton is also starts. For the long-term mystery, there's enough that satiates the curiosity without giving everything away. The stand alone mystery is strong and interesting! Every time I read these books, I want to get in and study my history!