I remember, when I read this at its publication, just grooving on the cover art (google it), and thinking, this is gonna be weird. And weird it was. Jeter posits a dangerous and peculiar culture, and if you're a fan, you understand he has much to say about the organization of culture and of power. So, we've got warring tribes, angels, and a protagonist who nurses a very bad attitude, kind of like when you worry a cavity in a tooth and it hurts, but at the same time there's the soothing confirmation of pain, you know? That's our guy. What's really cool is that this all takes place on the outside of the homeworld. It's huge, planet-size. And it was built, but we don't find out much about that. It's a thing that exists and is home to a civilization, and many have chosen to forsake the horizontal and risk it all living on the vertical. This is a very strange tale and one you should definitely read. K.W. Jeter was at the forefront of a certain cadre of science-fiction writer back in the eighties. Make his acquaintance.