All that land was now become filled with evil, and all clean things were departing from it; and Beren was pressed so hard that at last he was forced to flee from Dorthonion. In time of winter and snow he forsook the land and grave of his father, and climbing into the high land of Doriath. There it was put into his heart that he would go down into the Hidden Kingdom, where no mortal foot had trodden. Terrible was his southward journey. Sheer were the precipices of Ered Gorgoroth, and beneath their feet were shadows that were laid before the rising of the Moon. Beyond lay the wilderness of Dungortheb, where the sorcery of Sauron and the power of Melian came together, and horror and madness walked. There spiders of the fell race of Ungoliant abode, spinning their unseen webs in which all living things were snared; and monsters wandered there that were born in the long dark before the Sun, hunting silently with many eyes. No food for Elves or Men was there in that haunted land, but death only. That journey is not accounted least among the great deeds of Beren, but he spoke of it to no one after, lest the horror return into his mind; and none know how he found a way, and so came by paths that no Man nor Elf else ever dared to tread to the borders of Doriath. And he passed through the mazes that Melian wove about the kingdom of Thingol, even as she had foretold; for a great doom lay upon him.
It is told in the Lay of Leithian that Beren came stumbling into Doriath grey and bowed as with many years of woe, so great had been the torment of the road. But wandering in the summer in the woods of Neldoreth he came upon Luthien, daughter of Thingol and Melian, at a time of evening under moonrise, as she danced upon the unfading grass in the glades beside Esgalduin. Then all memory of his pain departed from him, and he fell into an enchantment; for Luthien was the most beautiful of all the Children of Iluvatar. Blue was her raiment as the unclouded heaven, but her eyes were grey as the starlit evening; her mantle was sewn with golden flowers, but her hair was dark as the shadows of twilight. As the light upon the leaves of trees, as the voice of clear waters, as the stars above the mists of the world, such was her glory and her loveliness; and in her face was a shining light.
But she vanished from his sight; and he became dumb, as one that is bound under a spell, and he strayed long in the woods, wild and wary as a beast, seeking for her. In his heart he called her Tinuviel, that signifies Nightingale, daughter of twilight, in the Grey-elven tongue, for he knew no other name for her. And he saw her afar as leaves in the winds of autumn, and in winter as a star upon a hill, but a chain was upon his limbs.
There came a time near dawn on the eve of spring, and Luthien danced upon a green hill; and suddenly she began to sing. Keen, heart-piercing was her song as the song of the lark that rises from the gates of night and pours its voice among the dying stars, seeing the sun behind the walls of the world; and the song of Luthien released the behind the walls of the world; and the song of Luthien released the bonds of winter, and the frozen waters spoke, and flowers sprang from the cold earth where her feet had passed.
Then the spell of silence fell from Beren, and he called to her, crying Tinuviel; and the woods echoed the name. Then she halted in wonder, and fled no more, and Beren came to her. But as she looked on him, doom fell upon her, and she loved him; yet she slipped from his arms and vanished from his sight even as the day was breaking. Then Beren lay upon the ground in a swoon, as one slain at once by bliss and grief; and he fell into a sleep as it were into an abyss of shadow, and waking he was cold as stone, and his heart barren and forsaken. And wandering in mind he groped as one that is stricken with sudden blindness, and seeks with hands to grasp the vanished light. Thus he began the payment of anguish for the fate that was laid on him; and in his fate Luthien was caught, and being immortal she shared in his mortality, and being free received his chain; and her anguish was greater than any other of the Eldalie has known.
Beyond his hope she returned to him where he sat in darkness, and long ago in the Hidden Kingdom she laid her hand in his. Thereafter often she came to him, and they went in secret through the woods together from spring to summer; and no others of the Children of Iluvatar have had joy so great, though the time was brief.
But Daeron the minstrel also loved Luthien, and he espied her meetings with Beren, and betrayed them to Thingol. Then the King was filled with anger, for Luthien he loved above all things, setting her above all the princes of the Elves; whereas mortal Men he did not even take into his service. Therefore he spoke in grief and amazement to Luthien; but she would reveal nothing, until he swore an oath to her that he would neither slay Beren nor imprison him.
But he sent his servants to lay hands on him and lead him to Menegroth as a malefactor; and Luthien forestalling them led Beren herself before the throne of Thingol, as if he were an honoured guest.
Then Thingol looked upon Beren in scorn and anger; but Melian was silent. 'Who are you', said the King, 'that come hither as a thief, and unbidden dare to approach my throne?'
But Beren being filled with dread, for the splendour of Menegroth and the majesty of Thingol were very great, answered nothing. Therefore Luthien spoke, and said: 'He is Beren son of Barahir, lord of Men, mighty foe of Morgoth, the tale of whose deeds is become a song even among the Elves. ''Let Beren speak!' said Thingol. 'What would you here, unhappy mortal, and for what cause have you left your own land to enter this, which is forbidden to such as you? Can you show reason why my power should not be laid on you in heavy punishment for you insolence and folly?'
Then Beren looking up beheld the eyes of Luthien, and his glance went also to the face of Melian and it seemed to him that words were put into his mouth. Fear left him, and the pride of the eldest house of Men returned to him; and he said: 'My fate, O King, led me hither, through perils such as few even of the Elves would dare. And here I have found what I sought not indeed, but finding I would possess for ever. For it is above all gold and silver, and beyond all jewels. Neither rock, nor steel, nor the fires of Morgoth, nor all the powers of the Elf-kingdoms, shall keep from me the treasure that I desire. For Luthien your daughter is the fairest of all the Children of the World.'
Then silence fell upon the hall, for those that stood there were astounded and afraid, and they thought that Beren would be slain. But Thingol spoke slowly, saying: 'Death you have earned with these words; and death you should find suddenly, had I not sworn an oath in haste; of which I repent, baseborn mortal, who in the realm of Morgoth has learnt to creep in secret as his spies and thralls.'
Then Beren answered: 'Death you can give me earned or unearned; but the names I will not take from you of baseborn, nor spy, nor thrall. By the ring of Felagund, that he gave to Barahir my father on the battle field of the North, my house has not earned such names from any Elf, be he king or no.'