I've long believed that authors should understand who their narrator is in order to better understand how to present their story. Over the years, I've used the traditional fireside storyteller, story characters or relatives or descendants, all of whom have the benefit of time and familiarity with those involved to understand what happened. However, lately I've been considering advancing that idea a bit by revealing the narrator's perspective.
Without discussing details (as it's a major story reveal), I'm hoping to switch a story told in 3rd person omni into a 1st person mid-way through the final chapter. It would read something like:
Bob walked along the street, oblivious to what was soon to occur.
"Hello Bob," I said.
"Who the hell is this?" he demanded, spinning in a circle, searching for anyone near enough to speak to him.
The obvious question is, how can I make this work without it becoming incredibly confusing for readers? Does anyone have any insights, clues or suggestions?
I'm considering rewriting the entire story to reflect the narrator's perspective without revealing who it is, but I'm having trouble figuring out how to handle the switch between 3rd to 1st (actually from the all-knowing storyteller talking about the characters to his talking to the characters).