Gate of the Southern Cross Key

The Gate of the Southern Cross Key is a Celestial Spirit Gate Key used by Celestial Spirit Mages to summon the Southern Cross, Crux.

Description
In the Manga, the key is depicted to be an ordinary silver key with the crest of the Southern Cross, a simple cross, stamped on its bow. In the Anime, the key is still depicted as silver but is designed more intricately. The bow is designed similar to a cross with the crest, colored in green, at the center on top of a white diamond-shaped center. The blade of the key is of simple design, shaped like a cross.

Usage
While in possession of the key, a Celestial Spirit Mage may be able to summon the Southern Cross Crux, a Celestial Spirit with a cross for a head who is capable to know all information concerning Celestial Spirits and their Mages.