A small gemstone, about the size of someone's palm. A deep, vantablack stone, no light seems to pass through the surface, the edges of the stone bleeding into any darkness or shadows behind it. The deep reverberating growls of something beyond can be felt emanating through the gem's surface. After attuning, the holder of the gem can understand and read Abyssal language and text, and has 30 ft of dark vision (this 30 feet is added to the holders current possible Darkvision distance).

Notes: Vulnerability: Radiant, Sense: Darkvision, After an hour long ritual in a dark room the edges of the gemstone will become clear through the dark, as the voice of something beyond beckons closer...