why book-only? i ask this as someone with plenty of book characters myself, just genuinely curious.

and, somewhat related, how would you end up handling series that started off in a non-book medium but branched off into books as it grew (think star wars, star trek, doctor who etc)?

as for the initial premise... if it existed as a proper game with that as the premise lead in, i would probably take a closer look to see how it's built and how the metaplot is introduced. basically, i would need more than what you've described now to get a feel for the game and whether i could see myself in it. right now it just seems vague at best.