I was really tired of how plot was branching away with scarce progress over main plotline so I looked ahead to get outline of how things will develop. Honestly, I don't like the idea of this outcome at all. I can see its consistency since from the beginning Battler fought to prove all of this was within human limits. However, after all these conceptual battles and meetings with almighty witches, the ending feels so... cheap and lackluster. Demons? Nah, guns and bombs. Battles of concepts? Who needs them anyway. Golden witch Beatrice? You must be wrong, there are no witches on Rokkenjima.
What was the whole point of elaborate riddles then? It really feels the great deal of attention that was paid to closed room cases in the eventual scale of things ultimately ended up being unrelated. I may be wrong since I just skimmed over the main plot points but it seems that the entirety of the plot is just a way for the protagonist to cope with his trauma. That was a low blow for me. It's one thing when you yourself know that the events in the book are not real; it's another thing when a character in-world admits that all this time, the events you watched development of were not real. I think that everything that the characters went through was of no importance at all and I can't get rid of this thought.