Yes, this book takes place on the early years of a generational ship/voyage, but its mainly about humanity. Yes, book pulls you through with the 'who dunnit' aspect and the sci-fi myster, but what holds the book together is the relationships of the crew. It really is a book about "the friendships we made on the way."

At times it ready very YA, and that made me hesitant at the start, but as you get more into the mystery, and the characters get older in the flashbacks, it became less of an issue.

Pretty interesting world building. Although I would benefit from rereading the opening chapters we're just going to let that one lie. On the whole I think this had a unique structure. It felt pulled out of the middle of a larger story (more so than most books in a series). There was clearly a story worth telling that happened before the book starts, of which we only get partial details revealed as the story progresses. And the ending felt sort of abrupt. But all that said, I'm interested in continuing the story to see how it all plays out.

But let's talk about the characters. The whole "everyone who loves me dies, and so I'll never let anyone close to me" is VERY much not my favorite trope. It's overdone and not very interesting anymore. It pulled me out of the story numerous times out of annoyance at Raeve's character. I did appreciate that Kaan was pretty upfront about the whole "we have a history" thing and it doesn't end up being a secret through multiple books.

One pretty trivial but pesky gripe I had was with the naming conventions of the book. The names of the gods was pretty laughable; Bulder for the Earth god, Rayne for water, Clode for air/wind, & Ignos for Fire. And don't even get me started on what a couch was called!!