The Silmarillion

There was small love between the Edain and the Easterlings, and they met seldom; for the newcomers abode long in East Beleriand, but Hador's folk were shut in Hithlum, and Beer's house was well-nigh destroyed. The People of Haleth were at first untouched by the northern war, for they dwelt to the southward in the Forest of Brethil; but now there was battle between them and the invading Orcs, for they were stout-hearted men and would not lightly forsake the woods that they loved. And amid the tale of defeats of that time the deeds of the Haladin are remembered with honour: for after the taking of Minas Tirith the Orcs came through the western pass, and maybe would have ravaged even to the mouths of Sirion; but Halmir lord of the Haladin sent swift word to Thingol, for he had friendship with the Elves that guarded the borders of Doriath. Then Beleg Strongbow, chief of the march-wardens of Thingol, brought great strength of the Sindar armed with axes into Brethil; and issuing from the deeps of the forest Halmir and Beleg took an Orelegion at unawares and destroyed it. Thereafter the black tide out of the North was stemmed in that region, and the Orcs dared not cross the Teiglin for many years after. The People of Haleth dwelt yet in watchful peace in the Forest of Brethil, and behind their guard the Kingdom of Nargothrond had respite, and mustered its strength.

At this time Hurin and Huor, the sons of Galdor of Dor-lomin, were dwelling with the Haladin, for they were akin. In the days before the Dagor Bragollach those two houses of the Edam were joined at a great feast, when Galdor and Gloredhel the children of Hador Goldenhead were wedded to Hareth and Haldir the children of Halmir lord of the Haladin. Thus it was that the sons of Galdor were fostered in Brethil by Haldir their uncle, according to the custom of Men in that time; and they went both to that battle with the Orcs, even Huor, for he would not be restrained, though he was but thirteen years old. But being with a company that was cut off from the rest they were pursued to the Ford of Brithiach, and there they would have been taken or slain but for the power of Ulmo, that was still strong in Sirion. A mist arose from the river and hid them from their enemies, and they escaped over the Brithiach into Dimbar, and wandered among the hills beneath the sheer walls of the Crissaegrim, until they were bewildered in the deceits of that land and knew not the way to go on or to return. There Thorondor espied them, and he sent two of his eagles to their aid; and the eagles bore them up and brought them beyond the Encircling Mountains to the secret vale of Tumladen and the hidden city of Gondolin, which no Man yet had seen.

There Turgon the King received them well, when he learned of their kin; for messages and dreams had come to him up Sirion from the sea, from Ulmo, Lord of Waters, warning him of woe to come and counselling him to deal kindly with the sons of the house of Hador, from whom help should come to him at need. Hurin and Huor dwelt as guests in the King's house for well nigh a year; and it is said that in this time Hurin learned much lore of the Elves, and understood also something of the counsels and purposes of the King. For Turgon took great liking for the sons of Galdor, and spoke much with them; and he wished indeed to keep them in Gondolin out of love, and not only for his law that no stranger, be he Elf or Man, who found the way to the secret kingdom and looked upon the city should ever depart again, until the King should open the leaguer, and the hidden people should come forth.

But Hurin and Huor desired to return to their own people and share in the wars and griefs that now beset them.

And Hurin said to Turgon: "Lord, we are but mortal Men, and unlike the Eldar. They may endure for long years awaiting battle with their enemies in some far distant day; but for us the time is short, and our hope and strength soon wither. Moreover we did not find the road to Gondolin, and indeed we do not know surely where this city stands; for we were brought in fear and wonder by the high ways of the air, and in mercy our eyes were veiled.' Then Turgon granted his prayer, and he said: 'By the way that you came you have leave to depart, if Thorondor is willing. I grieve at this parting; yet in a little while, as the Eldar account it, we may meet again.'

But Maeglin, the King's sister-son, who was mighty in Gondolin, grieved not at all at their going, though he begrudged them the favour of the King, for he had no love for any of the kindred of Men; and he said to Hurin: 'The King's grace is greater than you know, and the law is become less stem than aforetime; or else no choice would be given you but to abide here to your life's end.'

Then Hurin answered him: The King's grace is great indeed; but if our word is not enough, then we will swear oaths to you.' And the brothers swore never to reveal the counsels of Turgon, and to keep secret an that they had seen in his realm. Then they took their leave, and the eagles coming bore them away by night, and set them down in Dor-lomin before the dawn. Their kinsfolk rejoiced to see them, for messengers from Brethil had reported that they were lost; but they would not declare even to their father where they had been, save that they were rescued in the wilderness by the eagles that brought them home. But Galdor said: Did you then dwell a year in the wild? Or did the eagles house you in their eyries? But you found food and fine raiment, and return as young princes, not as waifs of the wood.' And Hurin  answered: 'Be content that we have returned; for only under an oath of silence was this permitted.' Then Galdor questioned them no more, but he and many others guessed at the truth; and in time the strange fortune of Hurin and Huor reached the ears of the servants of Morgoth.

Now when Turgon learned of the breaking of the leaguer of Angband he would not suffer any of his own people to issue forth to war; for he deemed that Gondolin was strong, and the time not yet ripe for its revealing. But he believed also that the ending of the Siege was the beginning of the downfall of the Noldor, unless aid should come; and he sent companies of the Gondolindrim in secret to the mouths of Sirion and the Isle of Balar. There they built ships, and set sail into the uttermost West upon Turgon's errand, seeking for Valinor, to ask for pardon and aid of the Valar; and they besought the birds of the sea to guide them. But the seas were wild and wide, and shadow and enchantment lay upon them; and Valinor was hidden. Therefore none of the messengers of Turgon came into the West, and many were lost and few returned; but the doom of Gondolin drew nearer.

Rumour came to Morgoth of these things, and he was unquiet amid his victories; and he desired greatly to learn tidings of Felagund and Turgon. For they had vanished out of knowledge, and yet were not dead; and he feared what they might yet accomplish against him. Of Nargothrond he knew indeed the name, but neither its place nor its strength; and of Gondolin he knew nothing, and the thought of Turgon troubled him the more. Therefore he sent forth ever more spies into Beleriand; but he recalled the main hosts of the Orcs to Angband, for he perceived that he could not yet make a final and victorious battle until he had gathered new strength, and that he had not measured rightly the valour of the Noldor nor the might in arms of the Men that fought beside them. Great though his victory had been in the Bragollach and in the years after, and grievous the harm that he had done to his enemies, his own loss had been no less; and though he held Dorthonion and the Pass of Sirion, the Eldar recovering from their first dismay began now to regain what they had lost. Thus Beleriand in the south had a semblance of peace again for a few brief years; but the forges of Angband were full of labour.