This series as a whole is so poorly-named, that it borders on false advertising. For an ongoing story collectively called The Expanse, each successive book has become smaller, and smaller in scope. Leviathan Wakes had a solar system-wide war, with entire planetary bodies being irrevocably altered in the conflict. Caliban's War had virtually the same plot, but with some different characters, and felt lesser by its very derivative nature. Abaddon's Gate centered on an enclosed area of space, with just a few fleets of ships. Cibola Burn? Just a single planet. If the proceedings were at least interesting, or even tried to live up to the promise of the underlying concepts at work, this wouldn't be so much of a problem; unfortunately, that's where this series truly falls flat on its face.
Much like every other book in The Expanse, Cibola Burn pays the briefest of lip service to the all-powerful, ancient alien technology that's ostensibly what underpins the entire series, and then summarily ignores it for 90% of the book, in favor of petty squabbling among arbitrary groups of people. With each installment, it's gotten increasingly tiresome, to the point where Cibola Burn essentially reads like a story about the Troubles in Ireland, but set on an alien world. Except, instead of Catholics/Protestants, the conflict is between a small group of squatters, who've shot ahead of everyone else, and laid claim to one of the thousand-plus planets beyond the Rings, and the big, (naturally) evil corporation that has the legal rights to it.
Want to read about the alien artifacts that are so thickly-strewn across Ilus/New Terra, that people are practically tripping over them? Too bad! Here's an interminable side plot about a squatter family that isn't sure if they should let their eldest daughter head back through the Rings, to attend college. Want to know why this planet is eerily abandoned by the beings that had previously settled here? Too bad! Here's a couple hundred pages of squatters and corporation reps trying to negotiate the transportation and tariffs on lithium ore, and occasionally shooting at each other. And every ten chapters or so, as an added bonus, enjoy an interlude that reads like half-assed, "deep" poetry written by a particularly pretentious middle-schooler. Argh!
To make matters worse, every major player in Cibola Burn is an idiot--if they weren't, the story couldn't progress along its glacial, nonsensical path. First off, it's an unexplored, unknown alien world, and nobody thought it might be a good idea to wear hazmat suits? Respirators? Goggles? I can understand the squatters not having that sort of equipment on-hand, given how fast they jetted out there--it's still moronic, but somewhat believable. But the corporation? Yeah, their shuttle got blown up as it was landing, but they seemed to have a fair variety of other supplies that survived the catastrophe. And yet, everyone's surprised when people start falling prey to rain-borne parasites.
Also, it's an entire freaking planet! Why is everybody fighting over this one tiny, crappy area of land? Everyone admits it's a barren, arid stretch of land, which does happen to have good mineral deposits. But are we expected to believe that literally nowhere else has anything of value?
And yet again, we've got a bunch of people so morally ambiguous, that they're willing to blindly follow a man who's quite clearly unhinged, because...well, just because the plot calls for it, really. "Sure, there are ancient alien weapons waking up and killing a bunch of people, but we can't shut them down! Because...because, we're the big, evil corporation, and this planet is ours, and...money...or something!"
I can see why George R.R. Martin calls this series "interplanetary adventure the way it ought to be written," because it really is playing out like A Song of Ice & Fire in space. There's all this amazing, dangerous stuff going on, that people really should be paying attention to, but instead it all gets shoved to the background because of politics. But the politics here aren't really even all that interesting.
After the first book, the entire rest of The Expanse has felt like one big bait & switch. The end of each novel was full of so much promise of looming alien intelligences, and threats that stretch the limits of human comprehension, yet every time, those expectations are squashed, in favor of dull, tiresome, tribal squabbling. Imagine if, after the gripping, psychological horror of the move Alien, the sequel was all about the Weyland-Yutani Corporation hashing out the legal red tape with the government of Earth, to be allowed to send out another ship to the planet with the xenomorphs. And then the sequel after that was them getting there, only to run into trouble with a rival corporation, who claims they have the right to explore that planet, and you never see any [insert expletive here] aliens! THAT is what The Expanse is like. And the end of Cibola Burn doesn't even cast aspersions at there being any interesting alien stuff in the next book, so I guess I have to at least give them credit for finally being honest. It's about the only damn thing this book does right.