This sounds like a sci-fi novel from the title, but it isn't. It's a middle-grade scare novel a la Goosebumps, but not. I picked it up because I thought it was sci-fi, but even when I realized it wasn't, it still sounded like an interesting premise when I first looked at it at the library: "The proud sailing ship Polaris is on a mission to explore new lands, and its crew is eager to bring their discoveries back home. But when half the landing party fails to return from the Amazon jungle, the tensions lead to a bloody mutiny. The remaining adults abandon ship, leaving behind a cabin boy, a botanist's assistant, and a handful of deckhands -- none of them older than twelve."
I think as a writer you need to bring your reader in pretty quickly (of course this rule doesn't apply to established writers how seem to think they can ramble on endlessly and still keep all their readers entranced. Stephen King I'm looking at you...). The problem is that for different readers this type of entrance means different things. It's hard to write a generic opening that will draw everyone in, and in this case, the writing just did not welcome me at all. Right from when I first started listening to it, I couldn't get into it at all and I DNF'd it pretty quickly.
I think the problem was the mesmerizingly rapid, if not rabid switch of viewpoints as the story opened so I wasn't ever quite sure where the hell I was. Maybe if I'd been sitting in a room listening to this it would have been different, but I listen to audiobooks pretty much exclusively when I'm driving, and when I am driving, I'm all about driving, and will ditch attention to a novel rapidly if something demands extra attention on the other side of the windshield. That's not to say I ignore traffic if a story is really engrossing, by any means, but I know that if my mind is wandering onto other matters - such as my own writing, then the audiobook just ain't cutting it. So, other than that, I don't have anything to add about this except that based on my experience I can't commend it.