Olaris Rhea was a female Human Sith Lady in the Lost Tribe of Sith from the remote planet of Kesh. In 41 ABY, Rhea was appointed to be the Master of Sith Tyro Vestara Khai after Khai had encountered a Sith Meditation Sphere named Ship. Rhea and her new apprentice served in the Tribe's armada aboard the captured warship Eternal Crusader. After the members of the Tribe sensed Jedi Grand Master Luke Skywalker's presence in the Force two years later, Rhea and Grand Lord Darish Vol handpicked a strike team to bring down Skywalker and recover Ship, who had abruptly left Kesh. Using Khai's unique connection to Ship, the strike team, led by Rhea, tracked the Meditation Sphere to a planet in the Maw, where they encountered Abeloth, a female being who was able to control the world's deadly flora. Sh