Everyone knows the Golden keys that the Zodiac are apart of that make them celestial spirits. There was a Golden key, but it wasn't apart of the Zodiac, it was one of it's own kind. And that reason is why it was forgotten. The Celestial spirit that owned the key, longed for a wizard to hold it's keep, and be use to the human world, that wish of hers never came intact. The Celestial spirit grew lonely, because she could not be accompany to the Zodiac members, she was not one of them after all. She waits to this day for her Celestial Wizard to come. I do not own any of the characters that Hiro Mashima created I do not own Fairy Tail, how ever I own the plot line and some characters.