Third volume of the "Stratification" trilogy
As third volumes of trilogies go, this is very satisfactory. The plot threads Czerneda has been juggling for about a thousand pages (counting this one) come together in a perfectly cromulent conclusion.
And then the book goes on for roughly another hundred pages.
The problem here is the fundamental problem with prequels in general: those who have read the sequels know how things are supposed to be when _this_ story is over. But the story started in _Reap the Wild Wind_ is over, very nicely done, thank you, before things are all set up. So Czerneda takes us past the end of this story and walks the characters, rather too easily, from the conclusion of their own story to the establishment of what will be the setup for the sequel.
So here's about 300 pages of really good, epic, planetary adventure fiction, in which our main character has grown from an innocent who understands nothing of her situation to, well, a not-so-innocent leader who _still_ doesn't understand _that_ much about her situation.
But at the end of the real story, the situation abruptly changes, plunging our characters entirely out of their own world and into a much larger milieu of which they know next to nothing - except, by one of sf's standard acceptable miracles, the language - and immediately take charge and control on a scale that, yes, sets up the situation for the previous trilogy/sequel, but it's just all too easy. These characters should be fish utterly out of water, and instead they immediately pull off a hugely successful (and secret) power play, which instantly makes them Players on a galactic scale. This should have taken another entire novel, or trilogy, and not been jammed in at the end of this one.
Still, the trilogy itself is complete and successful before that happens, so kudos to Czerneda and I shall doubtless read more of her books.