" If you're in the mood for grim, hard sci-fi that pulls no punches, this is a good choice. Reynolds is no Heinlein and could use an assertive editor (who needs to begin by taking a long look at the prose in the middle third of the book). However, there are very imaginative mysteries in this story, tied to insightful speculation and some superb adventure. Most of it is wrapped up by the last page in a way I found quite satisfying. "
— Caleb, 2/5/2014