Bloggers, readers, and reviewers have embraced Invisible Sun, the second book in David Macinnis Gill’s trilogy about Durango, a mercenary living on a terraformed Mars. “The writing is pretty much perfection for a sci-fi novel,” says WhatchYAreading, and My Bookish Ways raves, “Speaking of action . . . it rarely lets up and there are a few revelations that had my jaw on the floor.”