Writer Storm - A Brainstorming Community

That sounds like a fun series! It sounds like you have a whole lot of groundwork to lay for your story. What helped me was writing a lot of different short stories to get the characterization and the backstory settled in my mind. The thing is, I think that some of these are really, really basic plot questions that you need to answer for yourself, because I can honestly tell you I'd be happy reading a novel with any of those options chosen.