Eurydice

"In the Greek Version, Orpheus was a beautiful singer and lyre player. When his love, the nymph Eurydice, died, he went to Hades (underworld) to convince Hades (the God of the underworld) to give Eurydice back. Hades couldn't resist the music. He promised Orpheus Eurydice back, but only if he could walk all the way back without looking back once. He managed to get back to the gates of the underworld, but just before going trough, he wanted to make sure she was still following him, and...