So the rumour of the wealth of Erebor spread abroad and reached the ears of the dragons, and at last Smaug the Golden, greatest of the dragons of his day, arose and without warning came against King Thrór and descended on the Mountain in flames. It was not long before all that realm was destroyed, and the town of Dale near by was ruined and deserted; but Smaug entered into the Great Hall and lay there upon a bed of gold.
From the sack and the burning many of Thrór's kin escaped; and last of all from the halls by a secret door came Thrór himself and his son Thráin II. They went away south with their family43 into long and homeless wandering. With them went also a small company of their kinsmen and faithful followers.
Years afterwards Thrór, now old, poor, and desperate, gave to his son Thráin the one great treasure he still possessed, the last of the Seven Rings, and then he went away with one old companion only, called Nár. Of the Ring he said to Thráin at their parting:
'This may prove the foundation of new fortune for you yet, though that seems unlikely. But it needs gold to breed gold.'
'Surely you do not think of returning to Erebor?' said Thráin.
'Not at my age,' said Thrór. 'Our vengeance on Smaug I bequeath to you and your sons. But I am tired of poverty and the scorn of Men. I go to see what I can find.' He did not say where.
He was a little crazed perhaps with age and misfortune and long brooding on the splendour of Moria in his forefathers' days; or the Ring, it may be, was turning to evil now that its master was awake, driving him to folly and destruction. From Dunland, where he was then dwelling, he went north with Nár, and they crossed the Redhorn Pass and came down into Azanulbizar.
When Thrór came to Moria the Gate was open. Nár begged him to beware, but he took no heed of him, and walked proudly in as an heir that returns. But he did not come back. Nár stayed near by for many days in hiding. One day he heard a loud shout and the blare of a horn, and a body was flung out on the steps. Fearing that it was Thrór, he began to creep near, but there came a voice from within the gate:
'Come on, beardling! We can see you. But there is no need to be afraid today. We need you as a messenger.'
Then Nár came up, and found that it was indeed the body of Thrór, but the head was severed and lay face downwards. As he knelt there, he heard orc-laughter in the shadows, and the voice said:
'If beggars will not wait at the door, but sneak in to try thieving, that is what we do to them. If any of your people poke their foul beards in here again, they will fare the same. Go and tell them so! But if his family wish to know who is now king here, the name is written on his face. I wrote it! I killed him! I am the master!'
Then Nár turned the head and saw branded on the brow in Dwarf-runes so that he could read it the name AZOG. That name was branded in his heart and in the hearts of all the Dwarves afterwards. Nár stooped to take the head, but the voice of Azog44 said:
'Drop it! Be off! Here's your fee, beggar-beard.' A small bag struck him. It held a few coins of little worth.
Weeping, Nár fled down the Silverlode; but he looked back once and saw that Orcs had come from the gate and were hacking up the body and flinging the pieces to the black crows.
Such was the tale that Nár brought back to Thráin; and when he had wept and torn his beard he fell silent. Seven days he sat and said no word. Then he stood up and said: 'This cannot be borne!' That was the beginning of the War of the Dwarves and the Orcs, which was long and deadly, and fought for the most part in deep places beneath the earth.
Thráin at once sent messengers bearing the tale, north, east, and west; but it was three years before the Dwarves had mustered their strength. Durin's Folk gathered all their host, and they were joined by great forces sent from the Houses of other Fathers; for this dishonour to the heir of the Eldest of their race filled them with wrath. When all was ready they assailed and sacked one by one all the strongholds of the Orcs that they could from Gundabad to the Gladden. Both sides were pitiless, and there was death and cruel deeds by dark and by light. But the Dwarves had the victory through their strength, and their matchless weapons, and the fire of their anger, as they hunted for Azog in every den under mountain.
At last all the Orcs that fled before them were gathered in Moria, and the Dwarf-host in pursuit came to Azanulbizar. That was a great vale that lay between the arms of the mountains about the lake of Kheled-zâram and had been of old part of the kingdom of Khazad-dûm. When the Dwarves saw the gate of their ancient mansions upon the hill-side they sent up a great shout like thunder in the valley. But a great host of foes was arrayed on the slopes above them, and out of the gates poured a multitude of Orcs that had been held back by Azog for the last need.