"You may have back your wife," said she; "but on one condition. You have conquered Death; but that is not enough. You must conquer even Love, for her sake. Go back to earth, playing and singing as you came, and Eurydice shall follow behind you. But if, until you pass the gate of Hades, you turn your head to look at her; if you give even a single glance behind you to see if she is there, then you shall never see her again." You may think that Eurydice might have been given to him back without any conditions. But Hades was ruled by strict laws, which not even the king and queen could break; and nobody could be allowed to conquer death without showing that he could conquer temptation. Orpheus was overjoyed. Singing a hymn of thanks, he went back the way he came; and presently he could hear a faint sound behind him, as if the whisper of a footfall were keeping pace with him. Was it indeed Eurydice? He longed to look round and see; but he remembered Proserpine's condition, and he did not let his eyes wander from the chink of daylight which presently began to gleam before him. As he came nearer and nearer to the upper world of light, and life, and day, the footfall behind him grew more and more distinct, until he knew it to be Eurydice's: it was as if a silent phantom were gradually putting on its body again as it followed him. If he could but once look round--not to look was almost more than he could bear. But he might listen; and now he heard her breathe, deeply and gladly, as the breath of life came back to her. His music was indeed bringing her back from the grave! At last he saw, full in sight, the sunlit hills of the upper world. Forgetting that the gate of Hades had not yet been passed, he, in his impatience, turned round to clasp Eurydice to his heart--only to see her change back again into a pale, cold ghost, which, with a wail of love and sorrow, faded away forever. So Orpheus came back again from Hades heartbroken and alone. Once more, doubly hopeless, and hating himself for his own weakness, he wandered among the mountains and forests with his lyre. But while he was broken-hearted, his music became more wonderful than ever; for had he not seen with his eyes all the marvels of the under-world? Lions and tigers followed him as he sang, and became as gentle as lambs. The strongest oaks bent down to listen--nay, even the very mountains bowed their heads, and the swiftest rivers stood still to hear. He sang of Love and Death and Sorrow, and of all the mysteries of the world above, and of the world below, so that men looked upon him as a prophet, and came to him to learn wisdom.