Ash-Ama-Teseth
From Tardis Wiki, the free Doctor Who reference
Ana-Ash-Teseth was a creature that existed outside of time. He threatened ancient Egypt and was imprisoned with the blood of Erimem's grandfather, who was born outside of time. Ana-Ash-Teseth was considered a demon or a god by many and a cult with time travel technology developed in his honor, intent on releasing him from his prison. (PROSE: The Last Pharaoh)
