Cave of Rikuh

The Cave of Rikuh is a fairly mundane and nondescript cave located on Shattered Sephir. Indeed, it looks like nothing more than a cave in which a bear might inhabit while hibernating for the winter. Those who stumble upon it- the Cave of Rikuh’s exact location is preserved in only a very few sources- will find that, after entering, one can only progress so far, before encountering a magical barrier that does not permit entrance. 
This magical barrier was created by Elven Selu’Taar, and serves to imprison Rikuh (Male Human Lich Wizard 20 / Archmage 5), the former leader of the Dark Cabal of Sephir. Though most tales say that Rikuh was killed, this is actually untrue. Those doing battle with the Lich were unable to kill him, and, because of this, elected to imprison him. Rikuh still dwells in the cave he is sealed in, plotting his revenge.
Very few know that Rikuh is imprisoned beneath Sephir. The Olin Gisiae, an Elven organization that protects the abandoned treasures and secrets of ancient Elven realms, a select tribe of indigenous people living on Sephir, and, more recently, the Akh’Tel’Shil are believed to be the only organizations with knowledge of where the Cave of Rikuh is, and how to free the ancient Lich.