The first part, The Fllowship of the Ring, told how Gandlf the Grey discovered that the ring possessed by Frodo the Hobbit was in fact the One Ring, ruler of all the Rings of Power. It recounted th flight of Frodo and his companions from the quiet Shire of their home, pursued by the terror of the Black Riders of Mordor, until at last, with the aid of Aragorn the Ranger of Eriador, they came through desperate perils to the House of Elrond in Rivendell.... The companions journeyed in secret far from Rivendell in the North, until baffled in their attempt to cross the high pass of Caradhras in winter, they were led by Gandalf through the hidden gate and entered the vast mines of Moria, seeking a way beneath the mountains.... But Aragorn, now revealed as the hidden heir of the ancient Kings of the West, led the company on from the East Gate of Moria, through the Elvish land of Lorien, and down the great River Anduin, until they come to the Falls of Rauros.... The second part, the Two Towers, now tells how eaceh of the members of the Fellowship of the Ring fared, after the breaking of their fellowship, until the coming of the great Darkness and the outbreak of the War of the Ring, which is to be recounted in the third and last part.