This is a hard Sci-Fi novel. Very imaginative. It has adventure, mystery, and a touch of political intrigue in the story. Humans now call New Earth home and have made first contact with the Kmet, a species very different from humanity. There is an agreement in place with the Kmet that allows humans to use their Portals to transit vast distances in the blink of an eye. Everything maybe in danger though from another species called the Dividers.