Session 97: Emerald Twilight
The Aquarius' team is forced into battle with Skaad, who has control of the Emerald Sword. However, it becomes quickly obvious that the Emerald Sword seems to be controlling Skaad with some type of negative energy field. Even as they begin to get through to Skaad, he plants the Emerald Sword straight into Katrina's back where it lodges, unable to be removed without killing her. Skaad is quickly thrown into the brig.
Session 98: Emerald Night
Katrina Star is dying due to the Emerald Sword being lodged into her back. However, Doctor Black is unable to do anything about it as the sword will kill her if removed. Sardis is forced to turn to Skaad, who informs them that they must somehow travel into the Sword and purify it. Going back to the planet, which is tearing itself apart, they do just that. However, the mind of Katrina - or is it the sword - is a strange place. There, they are forced to face their own inner fears and demons until they free Katrina from the sword. Skaad then quickly unlodges the sword from her back, but the backlash of energy kills him. Now, the Emerald Sword is purified and reforged...and Katrina seems to be it's chosen owner.