In Mesopotamian mythology, Irkalla (Akkadian, also Ir-Kalla, Irkalia),[1] Kur (Sumerian) or Ersetu (Akkadian) is the underworld from which there is no return. It was also called earth of no return, Kurnugia in Sumerian and Erset la tari in Akkadian. Kur is ruled by the goddess Ereshkigal and her consort, the death god Nergal.