Trethon's Mask

 is a piece of equipment in Torment: Tides of Numenera.

Description
This mask is made of a strange material - certainly some kind of metal, but one that is extremely light and seems immune to damage. When you put it on, you are overwhelmed with visions of battles and lectures in an odd yet somehow familiar language. You quickly take the mask as it tightens on your face, as if it were trying to form a permanent bond. Putting it on again could provide profound knowledge and lessons, but at what cost? The mask seems to attempt an identity imprint.

Location

 * Village Fathom: Obtained from Tash.