In the form of an old woman named Deo (= the " seeker," or simply a diminutive form), she comes to the house of Celeus at Eleusis, where she is hospitably received.
At Eleusis also, Triptolemus, the son of Celeus, who was said to have invented the plough and to have been sent by Demeter round the world to diffuse the knowledge of agriculture, had a temple and threshing-floor.
5, 2) Triptolemus was the son of Celeus, king of Eleusis, and Metaneira.
Here she was hospitably received by Celeus, and out of gratitude would have made his son Demophon immortal by anointing him with ambrosia and destroying his mortal parts by fire; but Metaneira, happening to see what was going on, screamed out and disturbed the goddess.
Celeus endeavoured to kill him on his return, but Demeter intervened and forced him to surrender his country to Triptolemus, who named it Eleusis after his father and instituted the festival of Demeter called Thesmophoria.
According to another tradition, Erechtheus and Immaradus lost their lives; the Eleusinians then submitted to Athens on condition that they alone should celebrate the mysteries, and that Eumolpus and the daughters of Celeus should perform the sacrifices.