3 1/2 stars for the sizzling tension between H/h and the author's somewhat improved writing style. However, this book is evidence that not only is a good editor a writer's best friend, but you must focus on your immediate characters before expecting readers to want to move on to the next book. The author seems stuck on rushed HEA's and cliffhangers.
I love a great cat-and-mouse romance/mystery, and so about 3/4 of this worked for me. There's a lot of fun to be had with a sexy but married-to-the-job Runner/nobleman in pursuit of a tough, smart, beautiful jewel thief from St. Giles. One thing to note is that this author uses overlapping timelines but shift of perspective from book to book. Each entry feature MC's introduced in the previous entry, but the plots aren't entirely separate. Because timelines overlap, you see some of the same scenes, but from the entirely different point of view of another character. This is an interesting idea that sometimes works (although occasionally seems a bit too cute and just adds padding to the story). For example, in the previous book, the MC was a former thief who views the MC of this book, Grant, as an entitled womanizer. A scene at a bar seemed to prove this out. But you get the same scene in this book from Grant's perspective and realize that there's more going on than that.
My biggest irritation with this series, though, is that the endings are rushed and the epilogues impinged upon by the next book's MC's. So you have constant cliffhangers. I was irritated with this in the last book, when the heroine (who's had several traumatic experiences) finally gets her HEA, and suddenly we're thrust into what actually is the action at the halfway point of the storyline for this book. Same thing happens here, and it's extremely irritating, because although the H/h have great sexual chemistry, we're never given a consummation, just a "let's move on to this next couple." The wedding is glossed over and fun and games are hinted at, but not described in any detail. I don't mind sweet and clean, but the previous entries in this series were not sex-free, and with all the steam between this couple, the resolution seems rushed and like a complete tease.
Another issue here is pacing. For the first half of the story this seems like a light, sexy caper. Not much of any depth is revealed about Grant or Juliet, the heroine. (I thought Grant's war experiences could definitely have been explored). Then suddenly a new character is introduced, someone who played a key role in Juliet's past, and, in fact, has probably impacted her view of sexuality and men for years. This is jarring and feels like an element the author threw in at the last minute because she wasn't sure how to resolve H/h's stalemate. Not that there's anything wrong with the character or plot element, but it should have been introduced much earlier in the story.
Then you have the Slasher character re-emerging. The search for the Slasher is an ongoing plot element that won't likely be resolved until the end of this series. I expected to at least be thrown a few clues in the last book and was disappointed when that didn't happen.
As far as basic editing goes, there still is an issue with missing or misused words, and, one of my pet peeves, misused or missing apostrophes. When you're talking about the plural members of a family, an apostrophe is not used (eg it's the Smiths, not the Smith's). Plural nouns don't contain an apostrophe; a show of possession requires an apostrophe. You get the idea.
Anyway, I liked the H/h here. They were fun and sexy. The plot had potential, but didn't quite deliver on its promise. Dear author: The more invested readers are in the H/h, the more shortchanged they feel when the resolution is rushed just to push the next book in the series. Please be respectful of readers' investment in what you've written and give them a satisfactory HEA. Also, please review punctuation rules. Your loyal readers will thank you.