In around 38 BCE, Demet had mummfied his wife, who recently passed on, intending to place her body in the necropolis in the mountains above Klysma Quarry. However, the necropolis was rumoured to be haunted by various screams and laughters, causing him uneasiness during his journey towards the mountains.
Eventually, Demet was unable to continue his towards the tomb, stopping halfway in his tracks. The Hidden One Bayek of Siwa later came across the old man, having been sent to investigate the necropolis. Bayek offered to assist Demet with delivering his wife's body to the necropolis, which he accepted. Sometime thereafter, Demet met with Bayek outside the tomb, where the Hidden One remarked that his wife was at peace, having dealt with the hauntings in the necropolis.