It is essential that Frodo reaches the elf-haven Rivendell for treatment of his dire wound. Strider’s discovery of the green elf-stone symbolizes his destiny as a future king who is knows as “Elessar,” or “Elf-stone,” although readers are unaware of his heritage at this stage of the novel. Finally, the group find by chance creatures from a more recent myth (Bilbo’s experiences in
The Hobbit) when they strangely happen upon the three stone trolls.