The Lake of the Unseen, situated in the northeastern part of the Nightmare Lands on the planet Voss, specifically to the east of the Darkstone Grove, was a body of water. During the time of the Galactic War, this Lake served as a preferred habitat for native vorantiki, and was inhabited by at least three gigantic vorantiki named Qusak, Sorak, and Drumond. Even with the presence of wildlife and the influence of corruption originating from the Dark Heart, a collective of Voss Mystics could often be observed in meditation near a dilapidated shrine located within the lake, using it as a gateway to access the Spirit World.
In Star Wars: The Old Republic, a video game released in 2011, the Lake of the Unseen is depicted as a specific location on Voss.