I don't like to review books so quickly after I finish, but I feel like I'm so impressed by this novel that I might lose some of that if I sit on it. 
 Honestly, there isn't anything I didn't like about this story. I ate the whole thing up. 
 I can't say much that so many haven't already said, and I'm not nearly as expansive or elegant as others, but I have to say that I freaking loved this. 
 I'm not going to drabble on about what the book is about, but the main premise is somewhat similar to 
 , as others have noted, only on Mars. 
 But it also reminded me at points of 
 and how far some people will go when there isn't rules or laws and it's every person for themselves. 
 The characters are masterfully written. Brown writes them all as real people. You know how when you first meet someone, you have a first impression, and then you get to know them and you realize that impression was wrong? You see this through Darrow. So many of the characters you meet along the way, you see through Darrow, and maybe he likes someone off the bat, only to have them betray him, or maybe you meet hulking beasts that in the end are puppy dogs. You grow to love these characters and Darrow and you feel their pain. The character development is some of the best I've read. 
 This is an incredibly sad story full of rage. But it's absolutely amazing.