Grima's Dagger was the dagger worn by Grima Wormtongue in the Late Third Age. It was enchanted by the dark sorcery of his master Saruman the White with a deadly frost enchantment. This dagger was used by Wormtongue to stab Saruman's back in the shire and consequently banish him from Middle Earth, though Grima was slain by Hobbit's arrows after Saruman's defeat. The dagger was later recovered by the hobbits of the shire and sealed in the vaults of Minas Tirith.