The Vault

I read this book with my mind constantly a bit ahead of the text because moreso than the previous one this is where the multitude of things you can do in the game over multiple loops have to be distilled down into a single narrative, and I really enjoyed the way this was done. There are some pretty big deviations here for people who have played the game but I think most of them serve the story's themes well (though honestly the ultimate fate of Renba is a little silly after all that) and I loved the ending.