I've tried to write a summary for Monsters of Men, the last book in the Chaos Walking series by Patrick Ness, but nothing's coming out quite right. The description on its jacket, however, lays it all out perfectly, I'm going to cheat and use it:
In the electrifying finale to the multi-award-winning Chaos Walking trilogy, the choices of one boy and one girl will decide the fate of a world.
As a world-ending war surges to life around them, Todd and Viola face monstrous decisions. The indigenous Spackle, thinking and acting as one, have mobilized to avenge their murdered people. Ruthless human leaders prepare to defend their factions at all costs, even as a convoy of new settlers approaches. And as the ceaseless Noise lays all throughts bare, the projected will of the few threatens to overwhelm the desparate desire of the many. The consequences of each action, each word, are unspeakably vast: To follow a tyrant or a terrorist? To save the life of the one you love most or thousands of strangers? To believe in redemption or assume it is lost? Becoming adults amid the tumoil, Todd and Viola question all they have known, racing through horror and outrage toward a shocking finale.
Good, right? As is this series - all the way to its very satisfying end. And, really, that's all I have to say about it. I love these books. Read them. Amen.
If this were a movie, it would be rated: PG-13 for language (no F-bombs), violence and mild sexual innuendo
To the FTC, with love: Another library