The book I'm writing is essentially the story of the unraveling of the MC, sliding if not into insanity at least into neurosis and self-deception. I'm writing in third person from his perspective, and I'm wondering how this will come across. I've seen those kind of stories told in the first-person, and in those cases the reader can justified in developing doubts about the narrator. But a third-person narrator, even limited to the perspective of the MC, seems inherently reliable. Is it okay to have that narrator follow his character down the rabbit hole without making it clear that's what's happening? I think it can and has been done, but I'm just wondering. I hope this question makes sense.