The Hammer of Gharen (also called Ghiron's Hammer) is a legendary hammer created by the Dwemer Gharen. It is twinned with the Anvil of Mithas, and is the only object strong enough not to shatter when used to shape metal upon the Anvil. When the Hammer strikes the Anvil, it produces a ringing which reveals the location of the entrance to the Dwarven mines beneath Red Mountain, originally called Vvardenfell by the Dwemer (or City of the Strong Shield).
Late in the Third Era, the Hammer was lost in Black Gate, a dungeon on mainland Morrowind. During the Imperial Simulacrum, King Casik of Ebonheart had the Eternal Champion retrieve the Hammer. King Casik, who was already in possession of the Anvil, used the artifacts to craft the finest armor and weapons in the realm. The Hammer has never reportedly left the city's palace since.
- For game-specific information, see the Arena quest article.