I've always wanted to write a series of books that tell different tales that interlock with each other. The first book would be a journal of sorts documenting the narrator's journey through a post-apocalyptic event. The second book would be about a soldier in war that's set in the same world as the first book but in the way distant future. The third book, would be more of a companion history piece that ties book one and book two together and explains how people united under the post-apocalyptic event but then eventually fracture and split up into different sections once they began to settle due to politics, power plays, and simple clash in beliefs which leds to the background arc of the second book...the war for premium territory.
It would be cool because there would be bio-mech, genetic mutation, and reanimation thrown in the mix but alas this would be such an extensive project with all the research going into politics, religion, technology, science, biology, geography, psychology, and the massive amounts of realistic character building to go along with the story.
@.@ just thinking about it hurts my head.