Monsters of Men is the concluding book in the Chaos Walking series by Patrick Ness. This trilogy was less like three separate books than one story separated into three volumes, which is part of why I preferred this book to the middle book. It actually had an ending.
[Spoilers to follow.]
In this concluding section Todd and Viola have to try and unite humanity against the overwhelming opposition of the aliens they thought they’d killed in the war (before Todd was born). They’re trying to create a peace and Todd is becoming more like the Mayor because he’s learning so much. There’s a lot of Star Wars-esque father issues going on. Viola is hiding her distrust of the new Todd and they’re all growing up and she lets the war get personal while she’s trying to broker a peace. It’s all very dramatic, with one excellent return of a character from early on in the story that I didn’t see coming. And it ends really well.
There’s a new viewpoint character, one of the aliens, which I quite enjoyed. One of the issues with the series is that the first book is told completely from Todd’s perspective, and Viola doesn’t even have a voice for a good chunk of it. In the second book she becomes a viewpoint character. But if a young woman starts the first book, there’s not a lot for her right off the hop. And explaining that Viola is there and everything Todd thinks at first is wrong kind of defeats the purpose of how that book is set up. I don’t know if it’s a huge problem, but the fact that it takes so long to get a kickass female protagonist might turn off some female readers. Just a caution.