Many treasures and great heirlooms of virtue and wonder the Exiles had brought from Numenor; and of these the most renowned were the Seven Stones and the White Tree. The White Tree was grown from the fruit of Nimloth the Fair that stood in the courts of the Bang at Armenelos in Numenor, ere Sauron burned it; and Nimloth was in its turn descended from the Tree of Tirion, that was an image of the Eldest of Trees, White Telperion which Yavanna caused to grow in the land of the Valar. The Tree, memorial of the Eldar and of the light of Valinor, was planted in Minas Ithil before the house of Isildur, since he it was that had saved the fruit from destruction; but the Stones were divided. Three Elendil took, and his sons each two. Those of Elendil were set in towers upon Emyn Beraid, and upon Amon Sul, and in the city of Annuminas. But those of his sons were at Minas Ithil and Minas Anor, and at Orthanc and in Osgiliath. Now these Stones had this virtue that those who looked therein might perceive in them things far off, whether in place or in time. For the most part they revealed only things near to another kindred Stone, for the Stones each called to each; but those who possessed great strength of will and of mind might learn to direct their gaze whither they would. Thus the Numenoreans were aware of many things that their enemies wished to conceal, and little escaped their vigilance in the days of their might.
It is said that the towers of Emyn Beraid were not built indeed by the Exiles of Numenor, but were raised by Gilgalad for Elendil, his friend; and the Seeing Stone of Emyn Beraid was set in Elostirion, the tallest of the towers.
Thither Elendil would repair, and thence he would gaze out over the sundering seas, when the yearning of exile was upon him; and it is believed that thus he would at whiles see far away even the Tower of Avallone upon Eressea, where the Masterstone abode, and yet abides. These stones were gifts of the Eldar to Amandil, father of Elendil, for the comfort of the Faithful of Numenor in their dark days, when the Elves might come no longer to that land under the shadow of Sauron. They were called the Palantiri, those that watch from afar; but all those that were brought to Middleearth long ago were lost.
Thus the Exiles of Numenor established their realms in Arnor and in Gondor; but ere many years had passed it became manifest that their enemy, Sauron, had also returned. He came in secret, as has been told, to his ancient kingdom of Mordor beyond the Ephel Duath, the Mountains of Shadow, and that country marched with Gondor upon the east. There above the valley of Gorgoroth was built his fortress vast and strong, Barad-dur, the Dark Tower; and there was a fiery mountain in that land that the Elves named Orodruin. Indeed for that reason Sauron had set there his dwelling long before, for he used the fire that welled there from the heart of the earth in his sorceries and in his forging; and in the midst of the Land of Mordor he had fashioned the Ruling Ring. There now he brooded in the dark, until he had wrought for himself a new shape; and it was terrible, for his fair semblance had departed for ever when he was cast into the abyss at the drowning of Numenor. He took up again the great Ring and clothed himself in power; and the malice of the Eye of Sauron few even of the great among Elves and Men could endure.
Now Sauron prepared war against the Eldar and the Men of Westernesse, and the fires of the Mountain were wakened again. Wherefore seeing the smoke of Orodruin from afar, and perceiving that Sauron had returned, the Numenoreans named that mountain anew Amon Amarth, which is Mount Doom. And Sauron gathered to him great strength of his servants out of the east and the south; and among them were not a few of the high race of Numenor. For in the days of the sojourn of Sauron in that land the hearts of well nigh all its people had been turned towards darkness.
Therefore many of those who sailed east in that time and made fortresses and dwellings upon the coasts were already bent to his will, and they served him still gladly in Middle-earth. But because of the power of Gil-galad these renegades, lords both mighty and evil, for the most part took up their abodes in the southlands far away; yet two there were, Herumor and Fuinur, who rose to power among the Haradrim, a great and cruel people that dwelt in the wide lands south of Mordor beyond the mouths of Anduin.
When therefore Sauron saw his time he came with great force against the new realm of Gondor, and he took Minas Ithil, and he destroyed the White Tree of Isildur that grew there. But Isildur escaped, and taking with him a seedling of the Tree he went with his wife and his sons by ship down the River, and they sailed from the mouths of Anduin seeking Elendil. Meanwhile Anarion held Osgiliath against the Enemy, and for that time drove him back to the mountains; but Sauron gathered his strength again, and Anarion knew that unless help should come his kingdom would not long stand.
Now Elendil and Gil-galad took counsel together, for they perceived that Sauron would grow too strong and would overcome all his enemies one by one, if they did not unite against him. Therefore they made that League which is called the Last Alliance, and they marched east into Middle-earth gathering a great host of Elves and Men; and they halted for a while at Imladris. It is said that the host that was there assembled was fairer and more splendid in arms than any that has since been seen in Middle-earth, and none greater has been mustered since the host of the Valar went against Thangorodrim.
From Imladris they crossed the Misty Mountains by many passes and marched down the River Anduin, and so came at last upon the host of Sauron on Dagorlad, the Battle Plain, which lies before the gate of the Black Land. All living things were divided in that day, and some of every kind, even of beasts and birds, were found in either host, save the Elves only. They alone were undivided and followed Gil-galad. Of the Dwarves few fought upon either side; but the kindred of Durin of Moria fought against Sauron.
The host of Gil-galad and Elendil had the victory, for the might of the Elves was still great in those days, and the Numenoreans were strong and tall, and terrible in their wrath. Against Aeglos the spear of Gil-galad none could stand; and the sword of Elendil filled Orcs and Men with fear, for it shone with the light of the sun and of the moon, and it was named Narsil.
Then Gil-galad and Elendil passed into Mordor and encompassed the stronghold of Sauron; and they laid siege to it for seven years, and suffered grievous loss by fire and by the darts and bolts of the Enemy, and Sauron sent many sorties against them. There in the valley of Gorgoroth Anarion son of Elendil was slain, and many others. But at the last the siege was so strait that Sauron himself came forth; and he wrestled with Gil-galad and Elendil, and they both were slain, and the sword of Elendil broke under him as he fell. But Sauron also was thrown down, and with the hilt-shard of Narsil Isildur cut the Ruling Ring from the hand of Sauron and took it for his own. Then Sauron was for that time vanquished, and he forsook his body, and his spirit fled far away and hid in waste places; and he took no visible shape again for many long years.