I really enjoyed this one, but I still found it much too short for my liking.  That's really the only problem I've had with the first 4 books in the series, which is why I'm glad that the next book, which I already bought, is an actual normal novel length.  The characters are just my style and the writing is well done as I thought I had a very good vocabulary, but I learned a few new words from this author which is a good thing.  At this point, I think I'd buy and read any book about Markhat.