Welcome to the Dark Side, Mordred

[Nyx]

Twenty Years Ago. . .

In the middle of nowhere on Tatooine, a young Miraluka was trudging across the sands, fuming. For you see, only a few hours ago, she had abandoned her Jedi Master, who had shot down her claims one too many times. He clearly had no idea what he was talking about, of course she should be Grandmaster of the Jedi Order! She was so much more powerful than any of those pesky Jedi, and besides; Grandmaster Mordred had a nice ring to it. It wasn't her fault that they were too foolish to recognize her greatness, too afraid of her power to follow her.
Mordred looked around her, her fury radiating from her Force signature as she fumed to herself. She had made a promise to her "Master"; she would be back, and when that happened, she would destroy the Jedi, and then they would see her power!

As the Miraluka raved to herself, she began to sense something. . . strange. Something. . . dark. Mordred pursed her lips in curiosity, and decided to seek out the strange presence, a hand on her lightsaber. After all, it was the first time since she left her Master that she had an actual goal in mind.

 

[Nyx]

As she got closer to the presence, the more obvious it's dark nature became to Mordred, and the more obvious it became, the more curious she got. The Miraluka believed that whatever it was, surely she could handle it. After all, she was Mordred, and Mordred could handle anything.
The former Jedi spotted something with her Force Sight; a spot of pure darkness on the infinite grey of the sands. It both drew and repulsed her, her mind torn. Part of her still loyal to the Jedi was screaming for her to turn around and find her Master before it was too late, and the rest of her was whispering encouragement, telling her to investigate, to find the source of the darkness. After a moment of thought, Mordred steeled herself and made her way to the darkness, finding herself in front of a cave. The source was in the cave, and after a moment of hesitation, she walked inside.

When Mordred entered the cave, the Jedi inside of her died. All of her inhibitions simply fell away as she felt the pure darkness radiating from deeper within. It enticed her, and she was confident that she could harness that power. She approached the dark, and searched around for whatever was giving off the aura. After a few minutes of searching, her hands touched an object, and the mere contact sent chills up her spine, and she could feel the darkness radiating from the object. Looking at it with her Force Sight, she soon realized what it was.
A Sith Holocron.