Gaia Keys


 * You may be looking for the Gaia Gate, Gaia Temples, or Gaia Manuscripts.

The Gaia Keys are a set of ancient keys needed to access the chambers of the various Gaia Temples from the Gaia Gate in Apotos. Each key consists of two halves, one for the sun and one for the moon.

Shattered World Crisis
For an unknown amount of time, the Gaia Keys were safeguarded by a group of protectors who kept their charge a closely guarded secret. However, their identities were made known to Gregorios, keeper of the Gaia Gate, who likewise safeguarded this information. During the Shattered World Crisis, however, Gregorios chose to break silence and warn his colleagues after Metal Sonic attacked him looking for information on the temples. He also shared a list of those involved with the Knothole Freedom Fighters to enable them to gather the keys and thus access the temples and restore the world. (StH: #268 #272)

Background Information

 * The name "Gaia Keys" comes from the game Sonic Unleashed, and thus is Tier 2 canon until/unless it is confirmed in the comics.