This is the second book in the Dark Age Dawning series (the first is "Nightfall"), but you don't necessarily need to read book one to understand book two. It helps, but book two follows a different set of characters -- only of which is introduced in the first book. Of course, fan girl that I am, I highly recommend you read book one first. ;)
"Midnight" is as explosive as "Nightfall", though I didn't find it nearly as gritty or dark as the first book. That disappointed me a little bit and it's the main reason I gave "Midnight" 4 stars instead of 5. Where book one explored a world turned to chaos in an "every man, woman, child for themselves" kind of way, "Midnight" is more about groups of people coming together and building their own mini-civilizations.
This is what Rosa has done in Valle de Bravo. She's in charge and her word is law. She's got cojones, and everyone knows it. With the help of her bravos, she brings in food, whiskey and other supplies. In return, everyone swears fealty to her and lives in relative safety within the borders of Valle de Bravo.
I really liked Rosa. I loved that she was tough and had a set of steel cojones that put her above all the men around her. Still, she wasn't without her flaws. Because she's had to be so tough, she doesn't trust the changes that are coming with the new world. She's got a strong prejudice against shifters -- which we saw in book one aren't all bad -- and she has to keep herself at arms length from the men around her. That means no steamy one-night-stands and definitely no relationships. She can't afford to be seen as weak and emotional and she sacrifices herself for the good of her people. You can't help but admire her for that.
But even tough-as-nails Rosa can't deny her attraction to Chris, the doctor who appears in Valle de Bravo after traveling on his own for so long. Their attraction is near-instant, and it's strong, but Rosa can't trust Chris right away. He could, after all, just be using her as a stepping stone to be in charge of Valle de Bravo himself -- he wouldn't be the first to try. But Chris is patient, which we saw a bit of book one. What we didn't see in book one was Christian's flirty bad-boy side.
For some reason, I had Chris pictured as a scraggly, kind of dumpy type of professor. I certainly did not imagine him looking like the man on the cover. I do now, though. Ha!
For tons of action and a slight "wild-west-in-chaos" feel, "Midnight" is definitely the book you want to read. There may not be as many hellhounds as in book one, but the dust pirates are definitely a threat and there are more characters to become involved with.