This was fun to read, but I had to make many concessions. Apart from the issues I've already mentioned in the previous two books, the characters seem flat and two-dimensional. I know it's one of the characteristics of the genre, but I'm afraid it gets old very soon. Eventually you start wanting something a bit more complex than the standard ready-made clichés.
Still, a nice prose, well-written, still containing the self-deprecating humor that captivated me and with a nice element of mystery to it.