After Their Awakening

The year is... Well that's been lost for a long time. All they know is that it's been 3 generations since the Catastrophe. That day earth was left in shambles due to mysterious geographic decay, but was soon discovered why. On that day the guardians came from within the Earth. Hulking beasts that laid dormant, but were now awoken. With their twisted wings they reap for humans who survive and its said that they feast upon them. The remaining humans only survive on what was left behind from before the catastrophe. Now only a handful of civilizations are left, but each was large in numbers. They grow crops and sustain gardens to allow themselves to flourish. They wait for one day every month for the guardians to pass to hide and once they are gone they flourish above ground. But the rule of each Dean is strick and every civilization has its own rules to survive the reckoning days. But when an odd merchant shows up things fall apart. For better or worse? Nobody can yet tell.