A long, long time ago, an uprising erupted in Silo 18. The descendants of that great clash have been raised in its shadow. Nobody knows what went wrong. Nobody talks about what happened. Like all wars, it went from being something one could learn from -- to a legend one merely learns about. Now, almost two hundred years later, the people of Silo 18 will get more than just a chance to learn about that uprising. They'll get to start one of their own...