In ancient Egyptian mythology, Duat (Ancient Egyptian: dwt, Egyptological pronunciation “do-aht”, Coptic:, also appearing as Tuat, Tuaut or Akert, Amenthes, Amenti, or Neter-khertet) is the region of the dead. It has been shown as a star-in-circle in hieroglyphs: Osiris, the god, was thought to be the lord of the underworld. As represented in the Osiris myth, he was the first mummy and personified rebirth and life after death. Along with Osiris, the underworld was home to a number of other gods.
The topography of Duat is based on the Egyptian world: there are realistic characteristics such as rivers, islands, fields, lakes, mounds, and tunnels, but there are also amazing features such as fire lakes, iron walls, and turquoise trees. There is even a map-like picture of the Duat in the Book of Two Ways (a Coffin Text).