This was a re-read from 20 years ago, of a 180-page book that I read in one sitting while sitting in Barnes and Nobles. The re-read was kind of a lark, and because I was curious as to how badly the book had aged. And the answer is, not too badly! I can confidently say that the book is much better than it needed to be. The author, Tanya Huff, correctly identifies that were-rats are the sexiest of the were-creatures. She is joined in this opinion by Fritz Leiber, and later by the WarHammer crew and their silky sultry Skaven. Even more notably, she has discovered an entirely new sub-genre of horror, that is to say the horror of being a level 3 mage and exploring a dungeon all on your own. No meat shield, no perception or thievery, just you and the darkness and a bunch of creatures that can two-shot you. Absolutely terrifying. So! The book is about a wizard delving into sewers and such, while being enfolded and manipulated by a scheming clan of murderous, socialite were-rats. Both the delving and the scheming are reasonably well done.