They were first created by Tiamat in order to wage war against the younger gods for the betrayal of her mate Apsu. In the Epic of Gilgamesh, they stand guard outside the gates of the sun god Shamash at the mountains of Mashu. These give entrance to Kurnugi, the land of darkness. The scorpion men open the doors for Shamash as he travels out each day, and close the doors after him when he returns to the underworld at night. They also warn travellers of the danger that lies beyond their post. Their heads touch the sky, their "terror is awesome" and their "glance is death". This meeting of Gilgameš, on his way to Ūta-napišti, with the Scorpion-folk guarding the entrance to the tunnel is described in Iškār Gilgāmeš, tablet IX, lines 47-81.