Confrontation in the Caverns of the Hidden One

A confrontation took place in 43.5 ABY between Jedi Grand Master Luke Skywalker and Koro Ziil, leader of the Hidden Ones, a secret sect of the Force-based organization Baran Do tasked with preserving their knowledge. The duel took place in the Hidden Ones' home, the Caverns of the Hidden One. Skywalker—who had recently been exiled from Coruscant for failing to prevent Jedi Knight–turned–Sith Lord Jacen Solo's fall to the dark side of the Force—and his son, Jedi Knight Ben Skywalker, had traveled to the Kel Dor homeworld of Dorin, where they hoped to speak with Ziil to find out more about Solo's fall. After a short time training with the Baran Do Sages on the surface, they discovered the existence of the Hidden Ones. The Baran Do allowed the Skywalkers to go to the Caverns of the Hidden One, where they were allowed to speak with Ziil, who had become known as "The Hidden One."

However, in order to protect the Hidden Ones' secrecy, Ziil told the Skywalkers that they could never leave the caverns. Luke believed that the Hidden Ones had inadvertently turned their backs on the Force, and to prove that they were weakening, Luke suggested that Ben duel Chara, the Hidden Ones' newest member and best fighter. Ben defeated Chara, despite the Kel Dor by far being his superior. The Hidden Ones began to believe Luke's theory, greatly angering Ziil. The Hidden One attacked Luke, and they dueled with the Force, with Luke emerging the victor. The Hidden Ones then returned to the Baran Do on the surface.

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