The bodies of Freedon Nadd and Queen Amanoa are being carried to the spaceport when Tott Doneeta arrives with Oss Willum. Master Arca, Ulic, and Cay are already present, along with the new queen and king, Galia and Oron Kira.
The bodies are being sent to one of Onderon's moons, Dxun. Suddenly, a group of dark-siders, calling themselves "Naddists" attack, led by Warb Null. They are successful in stealing the bodies of Nadd and Amanoa.
The heroes then go to visit Galia's ailing father, King Ommin. The King summons the spirit of Freedon Nadd and attacks Master Arca. Warb Null and his army also joins the fight. King Ommin carries Arca off.
Ulic kills Warb, but doesn't know where Ommin took Arca. The heroes then find out that the royal palace has been taken by Naddists, so they retreat to Modon Kira's base in the wilderness.
Meanwhile, Master Thon takes Nomi Sunrider and her daughter, Vima, to Ossus to learn how to construct lightsabers from Master Vodo-Siosk Bass. She is then sent to help the Jedi on Onderon.
On Coruscant, Satal Keto and his cousin, Aleema, steal an ancient Sith spell book from the Great Galactic Museum. The cousins are heirs to the Empress Teta system, but have formed a cult, called the Krath, in worship of the Dark Side. When they learn that the Dark Side is still active on Onderon, they go there, but have to break through the Republic fleet to do so, and end up crash landing in the capital city, Iziz.
Satal Keto and Aleema
As the Jedi fight the Naddists for control of Iziz city, Satal and Aleema bring the book to King Ommin. He has still has Arca bound up. He plans to convert Arca into a Dark Jedi.
The Jedi soon break through the wall of Iziz and storm King Ommin's base. As they are defeating him and rescuing Arca, the spirit of Freedon Nadd leads Satal and Aleema to safety.
Order is soon restored to Iziz, and the remains of Nadd, Amanoa, and Ommin are taken to Dxun.