Devidia II was a planet, the second planet in the Devidia star system, located in the space of the galaxy's Alpha or Beta Quadrants. Devidia II was the homeworld of the Devidian civilization, a phase shifting species capable of rendering themselves invisible. (TNG episode: "Time's Arrow") Devidia II was known to Gary Seven and Roberta Lincoln prior to 1974. (TOS novel: The Rise and Fall of Khan Noonien Singh, Volume 1)