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The Causal Angel

I read this book as the culmination of a trilogy and did not like it as much as the others. A series of big all-vs-all wars in a mostly-virtual space meaning anything goes and there are shifting rules/constraints. So there would be a few really large battles without obvious constraints like the rules of physics or what-have-you. While some plot holes from the earlier books do get filled in, ultimately, this series ended on a sour note for me. I missed the storytelling of the earlier books.