Euridice was an oak nymph in Greek mythology. One of the daughters of Apollo and wife of Orpheus, she stepped on a venomous snake on her wedding day and died instantly. Her newly wed husband was so beside himself in grief that he sang and played a song so sad that it made the gods weep and they allowed him to go to the underworld of Hades and retrieve her and bring her back to the world of the living under one condition, that he must walk in front of her and not turn and look at her until they both reached the land of the living. Tragically, he could not help but turn to look at her, and she disappeared from sight, never to return.