In 'The Fellowship of the Ring,' Frodo is stabbed by the Witch-king of Angmar with a Morgul-blade at Weathertop (Amon Sûl) during the confrontation with the Nazgûl. The injury is severe and the shard continues to work its way toward his heart, eventually requiring Elvish healing at Rivendell. The Shire and Bag End are too safe, and Rivendell is their destination, not the attack site.