Okay, so the rundown is as follows: Nocturnal is a book with a lot of cool ideas. It follows Inspector Bryan Clauser and his partner Pookie Chang as they chase down cults, conspiracies, and serial-killing monsters in the streets of San Francisco. The last two hundred pages are a powerhouse of a ride, and a lot of the twists are well-built and not telegraphed. Scott Sigler knows what he's doing, and when it shines through, it shines. The characters' chemistry and some humor from the hunter of the supernatural not knowing exactly what he's doing also lend itself to some good scenes.
The problem is that there are three hundred pages before that, a lot of which tends to feel kind of like bloat and slows the momentum down a little, when Sigler's at his best with the throttle wide open and the plots breathless. The other major problem is that the main character is very hard to connect to, and that the plot feels kind of more built from conveniences than logical conclusions, and there are a lot of leaps.
But in the end, despite its flaws, I highly recommend looking into Scott Sigler's books, and if you happen to find it on the library shelf, go ahead and give Nocturnal a try. You may find you like it more than I do. I just wouldn't recommend buying it.
More, as always, below.