The Helmet of Hades, also known as the Helm of Darkness, renders its wearer invisible even to the eyes of the gods. It is one of the sources of Hades's power and was forged for him by the Cyclopses during the war against the Titans, along with Zeus' thunderbolts and Poseidon's trident in the myth.
If the wearer of the helmet is dead and wears the helmet in the mortal realm, they will live again. The Helmet was destroyed by Xena using her Chakram (XWP "Looking Death in the Eye").
