Killing Rocks by DD Barant is the third book in The Bloodhound Files, and this is where it all comes together -- it has a fast-paced plot, snappy dialogue, relationships being tested, and great action. Killing Rocks has everything you could ask for and (in my opinion), the best book in the series. If you are not familiar with the series, it is a good, fun, urban fantasy with a twist: monsters (such as vampires, werewolves, and golems) exist in alternative worlds, and the heroine, Jace, is pulled into one of those worlds. Jace has been deliberately brought into the alternate universe because of her skills. She is a serial killer profiler and the alternate universe needs her expertise to solve a case. It is a very well done cross-over of two of my favorite genres (detective/profiler and urban fantasy). The combination makes the story unique and fresh, and the characters make the story captivating.
The heroine, Jace, is a complex character; she is somewhat jaded, irreverent, and sarcastic. She lives to work and deals with her stressful job by laughing it off. She doesn't have much of a social life since a very acrimonious & painful split with her boyfriend. She has a hard time adjusting to being uprooted from her universe and dropped into another one, but gets caught up in the case and begins to adapt. She is helped by a vampire colleague Gretchen, a Golem bodyguard Charlie (who is a wonderful character and a perfect balance to Jace), and Azure, an "Astonisher" magician from another universe. The supporting cast are all complex & authentic characters. Jace herself is completely believable, likeable, and fun -- she struck me as a cross between Kate Daniels and Clarice Starling. The world-building is detailed, consistent; the author has created a very interesting world in which I hope to spend more time.
In book three, Jace continues to hunt for Aristotle Stoker, a human rights advocate / serial killer who preys on vampires and werewolves. In addition, she is determined to find Asher, a supervillian sorcerer who has the key to returning her home. Unfortunately, this time around there is a Golem uprising, and her right hand man Charlie is caught right in the middle of it. It's beautifully done edge-of-the-seat tension right up until the last page.