Like many of the other reviewers, I hadn't come across CJ Lyons before, even though I am a major consumer of mysteries. Like several others, I was attracted by Last Light's cover blurb. Its being marketed as the first of a new series (Beacon Falls #1) was a plus (it wasn't until I was well into the book that I looked at the "Also By" page and found that it was also/actually the seventh of another series).
And now a brief digression on series: when I hear "series," I think of something soap-operaish - a continuing/continuous account of various characters' lives. Not necessarily a bad thing - "Upstairs, Downstairs" was a television series I loved (I know I'm dating myself here). And four of Trollope's Palliser novels constitute a wonderful series. But I wouldn't use that term for the books featuring recurring characters like Wexford or Davenport or Millhone or Bosch or Reacher or Spenser. Each of these is essentially a stand-alone, self-contained novel (okay, "mystery," for those who restrict the word "novel" to works like "Pamela," or more recently, "Thus Spoke Zarathustra,"), with a consistent main character (possibly aging slightly over time) and often a relatively well-defined area of operation (probably gentrifying more rapidly), perhaps with occasional passing references to past events/persons. It is when the books each devote significant attention to hinting at the protagonist's tormented past or even more tormented present that they become part of what I would call, pejoratively, a series.
And now back to the res: whether it will be the second or the eighth in a series, I'm not going to read the sequel to Last Light. I found the characters cardboard, the plot improbable, and the mystery's solution both predictable and disproportional to the crime. The "Beacon Falls" set-up seemed like the spec script of a TV detective series (gee, there's that word again). That said, I did like the narrative form of alternating past/present chapters relating to the key event. I am a sucker for that approach, and it was what motivated me to finish this otherwise unengaging book.