Ethereal Ring

A powerful magical item in Ultima VII. With the charged Ether Ring, it is possible to enter the Tetrahedron Generator in the dungeon Deceit.

After waking up Penumbra in Moonglow, she told the Avatar to get the Ether Ring from Lord Draxinosum so that he could stop the disruption of the Ether. Sadly, Draxinosum had sold the ring the the Sultan of Spektran. Going there, the Avatar had to defeat a Stone Harpy to reclaim the ring. Returning it to Penumbra, she charged it. The Avatar then wore it in Deceit to enter the Generator, and destroy it, after defeating the Ether Monster within it.

Most likely, the Avtar returned the ring to Draxinosum after the Black Gate was destroyed.