Reimian Empire

What are you even writing? I'm well-versed in the many theories and puzzles about the three doors, and I can even guess why they've become popular now, so it would be a sin not to use them in any situation. However, this is not the case here.
Nebok has read the book a million times and didn't die; the probability of dying next is almost one, as it was already confirmed on the previous page. Your case here is completely irrelevant, and you shouldn't try to fit it into a completely different situation.