Question: Luthien, who appears in Tolkien's companion to The Lord of the Rings, "The Silmarillion", has her story told to Frodo by the heir of Isildur, who was first introduced by what name?
Sentence (from "Aragorn"): He was also a confidant of Gandalf and an integral part of the quest to destroy the One Ring and defeat the Dark Lord Sauron.
Relevant evidence: No