Celeste Morne

Celeste Morne was a Human female Jedi Master serving the Jedi Covenant as a Shadow, an agency consisting of Jedi whose identities were erased from the Order's records. She dedicated herself to the Covenant's cause as a result of losing her home and family ties in the Great Sith War. In 3,963 BBY the Covenant assigned Morne a mission to retrieve an ancient Sith artifact known as the Muur Talisman; created by a Sith Lord of the old Sith Empire, Karness Muur, the relic gave the wearer the power to control the mutant rakghoul creatures. Furthermore, Morne was tasked with bringing fugitive Padawan Zayne Carrick to justice. However, over the course of her mission, she came to doubt Carrick's culpability in the Padawan Massacre of Taris, for which he had been blamed by the members of the First WatchCircle of the Covenant.

As she fought through the obstructions to her mission, including the unexpected outbreak of the Rakghoul Plague on the planet Jebble and her own doubts about Carrick, Morne fell under the possession of the Muur Talisman. In order to protect the galaxy from herself, Morne allowed Carrick to seal her in Dreypa's Oubliette. She would remain there in stasis until 19 BBY, when the Sith Lord Darth Vader obtained the oubliette and released Morne. She emerged haunted by the spirit of Karness Muur and discovered that the Sith ruled the galaxy in the new era she found herself in. Enraged at this discovery, Morne dueled Vader and used the Muur Talisman to force him into retreat. For approximately nineteen years afterwards she lived secluded on a desolate moon until Luke Skywalker and Princess Leia Organa led a Rebel mission to recover what they thought to be a secret Imperial weapon, but was in fact, Morne. Suffering from temporary insanity, Morne transformed the Rebels into rakghouls and attacked Skywalker and Organa, who managed to barely escape with their lives. Abandoned on the moon, Morne was again left with only the spirit of Karness Muur, who tormented her.

After a hundred years, Morne took control of the Pellaeon-class Star Destroyer Iron Sun and took it into the Deep Core, intending to hold Muur there forever. She then met bounty hunter Cade Skywalker, and after witnessing him cure himself of the rakghoul plague with the Force, Morne joined Skywalker in his plan to assassinate the current Dark Lord of the Sith, Darth Krayt. Their quest took them to the planet Had Abbadon, where Morne allowed for the knowledge of Cade's presence in the Deep Core to reach Krayt. He arrived and battle ensued, ultimately resulting in Morne mortally wounding Krayt. With the Dark Lord finally eliminated, Morne focused on her own dilemma—the fear that the Sith spirit trapped inside her would soon dominate her completely. She asked Cade to free her of Muur's influence, and he obliged, killing her with his lightsaber.