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Seshem.eff Er Aat is an Isu vault located in the Black Desert in Egypt. It is connected to the tomb of a Nomarch, who had his final resting place built on top of the complex's remains.[1]

Around 48 BCE, the vault was visited by the Medjay Bayek, who activated the vault's pedestal and witnessed a recording made by the Messenger. Dated ninety-three days after the Great Catastrophe, the message displayed was intended for Layla Hassan, who was reliving Bayek's memories in 2017.[1]


  • Seshem.eff Er Aat is a romanised version of the Egyptian (sShm.f) (ir) (aAt), roughly meaning Lead Him To Truth.[2]




  1. 1.0 1.1 Assassin's Creed: Origins
  2. Markuz, Sorrosyss, Hephaestus (2 February 2018). A Gaze into the Nexus: The Coded Language of the Isu. Access the Animus. Retrieved on June 3, 2018.