![map of erebor interior map of erebor interior](https://i.imgur.com/hGr5r7i.jpg)
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The last resistance against the forces of Sauron The many years spent improving the Lonely The impenetrable gates and walls of the Lonely Mountain, buttressed and secured with advanced, complex, and resilient dwarven stonecraft and smithwork, easily withstood the siege equipment of the Easterlings. The dwarves and men fought a pitched battle against the invaders, in which Dáin and Brand, the then-King of Dale, were killed, though their forces eventually emerged victorious. Kings Brand and Dáin ready to defend their kingdoms The Men of Dale fell back to the the protection of the Lonely Mountain. In TA 3019 on the 17th of March, a horde of Easterling soldiers from Rhûn swarmed over the Redwater river, opening up a new front in the northern theater of the War of the Ring. The demise of Smaug was not to be the last of the Lonely Mountain's many troubles. During the battle, Thorin was mortally injured, and the titles of King under the Mountain and King of Durin's Folk passed to Dáin. Dwarves, elves, and men, together with the Eagles, battled the Orcs in what became known as the Battle of Five Armies. Dáin Ironfoot came to Thorin's aid, and the three races almost broke into war, until a host of Orcs and wolves attacked, eager to break the strength of all three kingdoms. Thorin thus reclaimed the mountain, but the elves of Mirkwood and men of Lake-town sought a part of the treasure, which Thorin refused to share. He was later declared king of the restored Kingdom of Dale. Smaug was eventually slain, shot out of the sky by a well-aimed arrow at his only weak spot by Bard the Bowman, a man of Lake-town and a descendant of Girion, the last lord of Dale. It took many days to find the door, and luckily for Thorin and Company, they did arrive on Durin's Day and were able to enter the mountain. Gandalf had managed to obtain the door's key and a map to its location from Thráin II, which fit a keyhole which could be found only when the setting sun and the last moon of autumn (also known as Durin's Day) would shine their light upon the keyhole. Set into the side of the mountain was a secret door, five feet high and wide enough for three to walk through abreast. In TA 2941, Bilbo Baggins and Thorin's company traveled to the Lonely Mountain to regain the treasure Smaug had stolen. Then seemingly by chance, Gandalf met Thorin in Bree, where together they planned to reclaim the mountain. Thráin vanished one morning and the attempt was abandoned. After a time Thráin II grew restless and set out with a band of companions in TA 2841 to return to the mountain. For many years thereafter the Dwarves lived in exile first in Dunland and then the Blue Mountains. Thrór, his son Thráin and several companions escaped through a Side-door. After laying waste to both Erebor and the neighbouring town of Dale, Smaug made the mountain his domain and hoarded the kingdom's wealth for himself. While Thorin Oakenshield was out hunting one day in TA 2770, Smaug flew in from the northern mountains and attacked the Lonely Mountain. They went their separate ways: Grór and his followers settled in the Iron Hills, and Thrór with his followers went to the Lonely Mountain. However, the Dwarves of the Grey Mountains began to be attacked by the Dragons that still lived in those mountains, and became embroiled in a costly war against them, which forced the Dwarves to abandon the Grey Mountains in TA 2590. The Lonely Mountain was abandoned for three-hundred and eighty years. Thráin I used the Arkenstone as a symbol of his rule, and his sons and grandsons under him who were to follow.įor two-hundred and eleven years the kingdom advanced, expanded and propsered until Thorin I abandoned it to join his kin in the Grey Mountains in TA 2210. In time, they became very rich and amassed a large amount of gold and treasure which included the jewel known as the Arkenstone. In TA 1999 King Thráin I led his people there and became King under the Mountain. Durin's Folk discovered the mineral wealth of the Lonely Mountain during the Second Age, but the colony only came into its own after the fall of Khazad-dûm.