Who to read after Kim Jong-il--James Church

I thought I'd just post this brief reminder about a series of excellent mystery novels by the psuedonymous James Church, who is said to be a former field agent in North Korea and other parts of Southeast Asia. I have reviewed the first one, A Corpse in the Koryo here, but there are four in all. I've read the second one, Hidden Moon, and have the next two to look forward to. It was actually this piece in Slate on The Man With the Baltic Stare  that convinced me to give them a go, as I had mistakenly thought that they were about South Korea and more 'cozy'. Yeah, don't ask me how that happened.