J. R. R. Tolkien's presentation of Heroism in The Lord of the Rings is based on medieval tradition, but modifies it, as there is no single hero but a combination of heroes with contrasting attributes. Aragorn is the man born to be a hero, of a line of kings; he emerges from the wilds and is uniformly bold and restrained. Frodo is an unheroic, home-loving Hobbit who has heroism thrust upon him when he learns that the ring he has inherited from his cousin Bilbo is the One Ring that would enable the Dark Lord Sauron to dominate the whole of Middle-earth. His servant Sam sets out to take care of his beloved master, and rises through the privations of the quest to destroy the Ring to become heroic.