Persephone, daughter of Demeter, was playing and picking flowers one day in the fields with the daughters of Oceanus. Unknown to her, but sanctioned by Zeus, Hades was setting a trap for her. She came upon a narcissus, the flower of the underworld, which was blooming so beautifully that she could not resist reaching out to pluck it. Immediately, the ground split open to allow Hades in his chariot to emerge into the field and abduct the girl. No one heard her cries except for Hecate and Helius. Demeter, aware that something had gone wrong, began to search for her daughter, but no one was willing to to tell her what had befallen Persephone. After wandering ten days without nourishment, she met Hecate, who told her that she had heard Persephone's cry but had not seen what had transpired. So, the two of them decided to seek out Helius, the watchman of the gods. Helius, pitying Demeter, told her the truth: Zeus had allowed Hades to kidnap her daughter. At this news, Demeter fell into deep sadness and removed herself from Olympus, bitter at Zeus. While she was resting at the Well of the Maidens in the town of Eleusis, she encountered the grand-daughters of Eleusis himself, who did not recognize the goddess because she was disguised. Demeter told them that she was from Crete and had been carried here by pirates and was now looking for employment. In due course, Demeter was hired as the household nurse for the girls' family and was given the care of girls' youngest sibling, a boy. Secretly, Demeter fed the boy ambrosia, nectar of the gods, and placed him into a fire each night, slowly turning him into an immortal. Her plot, however, was uncovered by the mother, who thought Demeter was trying to kill the child. In anger, Demeter informed her that her son could have become immortal, but now would only live to an old age. Then, the goddess demanded that a temple and altar be built to her on a hill, that she might teach the people of Eleusis her mysteries.