Blah. Sadly, this book sees all the potential from the first book squandered. It's not a BAD ending, but my issues are plenty:
1) the solution to the problem of the monster shii (again, I'm not sure exactly where the division between 1 & 2 is, but I don't think it's a spoiler to say that a legendary, cruel version of a native beast, the shii, is murdering & decapitating people in the work camp) is ... meh. Like, it's a decent attempt at a Trek (or who) style resolution to a "monster," but when you take a step back, it's like, 'wait, what?' It seems overly contrived.
2) this civilization seems SO backwards, it's difficult to feel like they aren't just a pre-first contact race Starfleet is messing with. There's a brief flurry in the denouement to try to rectify this, but it's too little, too late.
3) About 80% of this book is first person from Sonya Gomez's POV. This answers my prayers for more focus on some of the cast. I'm good with the group dynamic, but because of the short length of the SCE stories, it's tough to get even one character beat in per book. So here, Sonya got nearly 150 pages all to herself. What do I know about her now? Uh ..... The one character I liked the most was Razka. He had fascinating feet of clay, and was by far the most interesting thing about the books. Sonya was ... like ... I feel like you could've replaced her with any other Starfleet member, basically, and it wouldn't have affected the plot at all. I learned nothing about her.
So while the book didn't FAIL, it definitely felt like a squandered opportunity. Still, short enough that I didn't mind it.