Razors and Thunderbolts is a short but well written overview of the mysterious Ksirafai in Mage: the Sorcerers Crusade. It gives some good advice on how to use them either as player or non player characters. As NPCs these shady agents can be either protagonists, antagonists - or both!
What brings the score down for me is that a big part of this already thin book is made up by character concepts with full page character sheets. While very diverse and interesting, I would have preferred more background material, perhaps some example rotes or NPCs.
Overall a well written and good-looking book that appears rather thin, but still worth the price.