Aletheia's Walk

Once every seven years the second moon appears; it gets so close you would think you can just walk to it. It would stay for seven full days and then disappear. No one knew where it came from or what caused it to behave this way, no one....except Aletheia. It's secrets were revealed to us by Aletheia, and along with them, the knowledge and skill to build these towering structures to tap into it's unlimited energy.
So once every seven years, on the first day of the moon's appearing, we walk through them as they begin to store the moon's energy. Others think we do this to celebrate the moon, but in fact, we do this for Aletheia!