The Lord of the Rings: Aragorn's Quest Mountains is to go under them, via the dwarven mines of Moria. Upon entering Moria, Gimli is devastated to learn rumors regarding Balin and the dwarves are true; they have been wiped out by orcs. The fellowship fight their way to the Chamber of Mazarbul, where they find the tomb of Balin, and a record of how the mines were lost. Fighting their way through a hoard of orcs and trolls, they are attacked by a Balrog. They flee, reaching the Bridge of Khazad-dûm, where Gandalf defeats the Balrog by destroying the bridge as it stands on it. However, as
Themes of The Lord of the Rings "The Lord of the Rings" is contrasted sharply with the prominent role also given to choice and free will. Frodo's voluntary choice to bear the Ring to Mordor is seen to be an act central to the plot of the whole story. Also important is Frodo's willing offer of the Ring to Gandalf, Aragorn, and Galadriel, and their willing refusal of it, not to mention Frodo's final inability to summon the will to destroy it. Thus, free will as well as fate is seen to be a constant theme throughout the story: from Sam's vision of old Gaffer Gamgee's wheelbarrow