Fourth instalment – just as good as the rest! A really intriguing story, keeping me wondering what was going to happen next, and how the story was going to unfold, etc. This appeared to be just one big story, not multiple stories, concluding at the end, like volumes 1 and 2. Volume 3 was 4 totally separate stories.
Not much for me to add, without adding spoilers, etc. Anyway, now on to the next one!