Freedom!

You crawl through the vents, a maze of concrete and metal, but through following the feeling of fresh air you manage to see light ahead of you! You scramble towards it, and with a last push on the grate between you and air you find yourself in the outside world! You unwittingly fall a few feet onto concrete, but the feeling of escape dulls the pain. You've made it! The grey tinged sky above you, the wind blowing against your skin... you look up and see a grey and brown planet staring back down, a few splotches of green and blue here and there. Did the moon always look like that? You can't remember no matter how much you try, but then again, who cares! You're free!

...

...but what now?