Part 25 ranks clearly at the lower end of the series. Worse was really only "Descent of Angels" (Volume 8, if I remember correctly ...). The whole story is told from different perspectives Calth, this is the "ground war" treated after the actual attack the Word Bearers. Here, unfortunately, the book contributes nothing to the progress of the story, and other backgrounds actually not develop further. Lyrically course like all HH-books good to very good, depending on the author. Of course you can buy it if you collect the whole series and reading, one would have these stories but also give and instead prefer to take up another issue.
Overall, though, but ok, even as the price range typically totally goes all right!