"Final Fantasy XII" also introduces the "Occuria", immortal beings who have no visible faces, only a pair of glowing yellow eyes seen under their floating shell-like armor, surrounded by an aquamarine aura. The Occuria can become selectively invisible, and are also capable of possession, shape-shifting and image projection. Referred to by some as gods, but unknown to the main religions in Ivalice, the Occuria race played a central role in the history of Ivalice, controlling all major events, such as the rise of the Dynast-King Raithwall. Though peace fostered in Ivalice in the four-hundred year rule after Raithwall, the Occurian Venat, apparently disgusted with its kind's manipulations, rebelled and gave the secret of Nethicite to the Archadia's Dr. Cid and Vayne to overthrow the Occuria and make mankind the masters of their own fate. The events of the game eventually provoke the end the "Age of Stones" (the Occuria's control over Ivalice). In "Final Fantasy XII: Revenant Wings", the Occuria were revealed to have played a part in the sealing of the Purvama Lemurés long ago, which by the present time became a land of legend that many Sky Pirates sought for its Auracite.