Jysella Horn was a female Human Jedi apprentice. She was the daughter of Corran Horn and Mirax Horn, as well as the sister of Valin Horn. She and Valin were recruited by Jedi Masters Kyle Katarn and Nathaniel Kenobi Solo to join them in the Mission to Korriban. She was assigned to Nathan's group, which consisted of Jaina Solo, Zossk Sadeet, Raxe Nuk, and Arboc. Her group was attacked by Darth Mutatos, Sacul Vao, and their alchemal animals. Except for Nathan, who was ghosting away to save his life, the entire group was captured by the Sith.