The second part of J. R. R. Tolkien's classic fantasy novel "The Lord of the Rings, " in which Frodo and Sam journey down the River Anduin--followed by a mysterious creeping figure--on their quest to protect the Ruling Ring from the Dark Lord until it can be destroyed.
The conclusion of "The Lord of the Rings": To defeat the Dark Lord, the accursed Ring of Power has to be destroyed in the fires of Mount Doom but the way is impossibly hard and Frodo is weakening.