"Listen to me, Thorin Oakenshield! If this hobbit goes with you, you will succeed. If not, you will fail. A foresight is on me, and I am warning you."
―Gandalf
Thorin II, also known as Thorin Oakenshield, was the King of Durin's Folk from T.A. 2850 until his death in T.A. 2941, being the son of Thráin II, grandson of Thrór.
Thorin was still a youngster, by Dwarves' reckoning, when the dragon Smaug descended upon the mountain of Erebor. Smaug left the mannish town of Dale in ruins and killed many dwarves who were inside the mountain. Thrór and Thráin escaped using a secret Back Door. Thus the surviving Dwarves of Erebor were driven into exile.
Thorin led Durin's Folk of the Blue Mountains during their time in exile. In T.A. 2941 he led the quest for Erebor accompanied by twelve Dwarves, Bilbo Baggins, and Gandalf the Grey; he briefly became King under the Mountain until he perished following the Battle of Five Armies.
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