5.0 stars, easily. Good god damn! Finally, a Culture novel that has bumped Use of Weapons out of the top spot for me. This one was so, so, SO good. I simply could not put it down. It was humorous, which made me laugh out loud at times. It was also emotional, tugging at my heartstrings in certain moments. The story was extremely intriguing, keeping me on the edge of my seat throughout. I was constantly guessing about what was coming next and who was who, and I was almost exclusively incorrect right up to the very last few pages. Banks could really write, my dudes. It was an absolute pleasure to read this book. All Culture fans MUST read this one. And so should anyone else who's into SF. It's a must-read for science fiction enthusiasts. You won't be disappointed.