|Helmet of Hades|
|Also Known As|| Helm of Darkness|
Helmet of Invisibility
|First Appearance||XWP "Mortal Beloved"|
|Last Appearance||XWP "Looking Death in the Eye"|
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.