Degan Gera was the one who actually discovered Talanorr in the Koboh Abyss in the High Republic Era. He built a temple there and decided to make it a training center for young Jedis. But soon after, the place was invaded by Nihil raiders, and his dream could not come true. Although Gera defended his ground against the enemies, when the Council decided not to initiate a counter-offensive plan, it broke Dagan’s heart, and he felt betrayed. As a result, he revolted against the Order and killed his fellow Jedi in rage. And despite Santari Khri trying to bring him to the Light, his obsession with Talanorr had already made him fall for the Dark Side.