Sithis is the Skyrim god of death. She was incorporated into 3ms memes in the belief that Sithis was killing catholics to cover up The Convergence... or something like that. She also had an alliance with the aliens.. I think. This was "evidenced" by the death-sign on the KCC Mural, the letters that look vaguely like "sithis" and the rows of cross graves. For a while, she became the main antagonist of 3ms/Convergant beliefs.