Part the third!
This is probably the least detective-y of the three novels, but it too centers around one man's private investigation that gradually spirals out of control. It also involves two more writers.
I enjoyed reading this one as much as the two previous novels, but I don't think it stuck with me as well. I read it most recently of the three and already many details are fading. As with the others, I found the twists were fairly predictable and the ending was ultimately unsatisfying. I might actually have to lower this one to three stars.