|“||Lloigor, Zhar and Ithaqua shall ride the spaces among the stars and shall ennoble those who are their followers, who are the Tcho-Tcho; Cthugha shall encompass his dominion from Fomalhaut; Tsathoggua shall come from N'kai...||„|
|~ The Lurker at the Threshold|
Zhar and Lloigor are the descendants of the Great Old One Chaugnar Faugn. They are also believed to be related to Hastur, Ithaqua and Rhan-Tegoth. The Tcho-Tcho people supposedly grew from their seeds. Lloigor also spawned a race named after him when he mated with Ghatanothoa.
Zhar and Lloigor were defeated by the Elder Gods, who banished their minds to outer space and sealed their bodies in the caverns beneath the Plateau of Sung. The minds of the Twin Obscenities were able to communicate through the star Antares. The Tcho-Tcho, who lived in the Plateau of Sung, communicated with their gods through astral projection.
The Tcho-Tcho intended to find a way to reunite Zhar and Lloigor's minds with their bodies. To this end they abducted scientists Eric Marsh and Fo Lang with the goal of forcing them to help them in their plans. However Fo Lang was able to manipulate the Tcho-Tcho into summoning the Elder Gods, who destroyed their city and flooded the caverns, burying Zhar and Lloigor's bodies even further beneath the Earth and possibly destroying them altogether.