A stand alone book, even if there are a couple of amusing references. The book is about Renark, a man who is trying to find out what is wrong with the cosmology of the universe.
When he finds out what is going on, he is drawn into a battle to save it, against a strange alien enemy. The Blood Red Game is deadly, and requires people with certain mental powers and stamina, and the fatality rate is very, very high.
If they fail and lose the game, humanity is destroyed.
4 out of 5