Summary: Darth Vader finds his Daughter, Princess Leia Organa, when she is 10 years old. Lies are unravelled and new purpose is found. The future of the galaxy is forever changed. This is a Vader/Dark!Leia story, familiar faces and some OC's will appear. Rated T for future events.

Author's note: This is my first written fanfiction so reviews are more than welcome. I love the idea of a dark, Sith Leia, and it is a shame there are not enough stories depicting that. I've had the idea to write one for a while and I've finally decided to do it. This is inspired by Cka3ka's unfinished but amazing "Heart of Darkness". I hope you enjoy reading this as much as I do writing it.

Dark Daughter

Prologue

Chapter 1 Insubordination

The sound of heavy boots echoed down the empty corridor. It was an elaborate corridor, one of hundreds in the palace, crafted by the best architects and stone masons the galaxy had to offer. The intended purpose to tell any person that traversed the halls that whoever lived here was utmost royalty, the pinnacle of opulence and luxury. For those unfortunate enough to be force sensitive, the dark presence that hung in the air and stuck to you like the mist in the swamps of Dagobah made the palace feel foreboding. The closer one got to the throne room, the more it felt as if the very air was getting heavier and heavier. The dark figure striding down the corridor was more than used to this presence and simply ignored it. He was more than used to the dark presence, all it made him feel was annoyed and inconvenienced.

With confidence and authority the dark figure approached two red robed guards standing alert to the doors of the throne room. They were expecting him to be here, their master usually made the dark figure wait outside but today was different. Today their master was in a foul mood and did not want to play the usual mind games, so simply opened the doors and allowed the dark figure passage.

When one thought of an emperor, they thought of him as dressed in extravagant clothing with his face proudly on display. The figure on the throne looked more like a crazy old monk from some cult on a backwater planet, though if anyone thought that - let alone speak it aloud - they would wish they had never been born.

The dark figure kneeled at the dais erecting a powerful mental shield to keep anyone curious enough to probe his mind, specifically the Emperor, firmly out of it. Having his mind probed by the Emperor made him feel violated.

"What is thy bidding my master" spoke the dark figure in a tone of submittance and servitude. Every time he spoke those words a part of him cruelly mocked himself for being a virtual slave to this man. That train of thought was rudely interrupted…

"Lord Vader" spat the Emperor. Darth Vader knew now that his master was in a foul mood. "Moff Haskar was rather useful at finding the rebel scum that plague my empire and yet I have recently heard that he has become another casualty of your fits of rage, care to explain?!" asked the Emperor.

Oh it was about that fool Haskar, that intolerable man was obnoxious, but it was true he was useful at rooting out the rebels. His true crime was to make the mistake of overriding every one of Vader's orders and on several occasions the rebels had eluded them because of his actions. Such incompetence could not be tolerated, surely his Master would see this.

"Master, Moff Haskar was an incompetent fool who was incapable of carrying out his ta-"

The Emperor cut off Vader before he could finish "I personally assigned Moff Haskar because I deemed him more competent than you at finding these rebels!" the man boomed, fury clearly emanating in his voice. "You have forgotten your place my apprentice, do you think yourself more qualified than me to judge the competence of the men I personally choose?"

"Master, he was wasting resources and manpow-"

"I do not care for your pathetic excuses" the Emperor shouted, cutting off Vader with Sith Lightning. Vader simply remained kneeling baring the brunt of the barrage. "I explicitly said he was to be given access to all resources at your disposal and that he was very useful to me, yet you decide you know better than me"

The Emperor ceased his barrage to allow Vader to respond.

"I apologise my Master, this will not happen again" grovelled Vader, trying to maintain his position under the intense pain he was feeling.

"It won't happen again because he's dead. You will now take Moff Haskar's place. Before his untimely demise, his investigations pointed to Alderaan and its Viceroy, Bail Organa. You will go there and root out the rebels" he commanded.

"As you wish, my Master" he replied almost robotically.

Vader hated Alderaan with a passion, he had avoided going to the planet as much as possible. It reminded him too much of Naboo, a planet he hadn't been to in 10 years. Vader suspected the Emperor knew this and was punishing him, although finally pinning down Bail Organa as a rebel sympathiser would make the punishment more bearable.

"You will leave immediately, and send in Mara on your way out" the Emperor said, slowly slipping back into his throne.

Vader rose and turned to leave, his cape billowing as he walked. He carried on walking even when the Emperor began to lecture him.

"Remember my apprentice, Moff Haskar was useful to me but not irreplaceable. You are useful to me as well, but even you are not irreplaceable" cackled the Emperor, drinking the anger emanating from Vader.

How dare the Emperor consider the second-in-command of the Empire replaceable. Would he replace him with that leech, Tarkin? In his anger he almost steam rolled Mara with his boots as he left the throne room, only a quick sidestep prevented her from becoming one with the floor.

"Hey, watch your going Vader!" she shouted. If it were anyone else, their neck would be snapped in seven places. But alas, she was the Emperor's toy. He didn't even bother looking back at the girl as he told her to go in. Perhaps that was his supposed replacement; yes perhaps.

She was only eight years old and lacked the force potential he did, but she was already brainwashed to follow the Emperor zealously. The Emperor craved power over others, and although Vader was a virtual slave he did have his own thoughts and agendas. If the Emperor personally trained Mara, she would be at his every beck and call. A life of servitude with complete devotion, a mere pawn for the Emperor to use. He almost pitied her ignorance, he knew exactly what he was. One day though, he would become powerful enough in the force to break free of his chains; but that day was long off.

He would brood over this en route to Alderaan, and with that thought he comm'd the captain of his flagship, the Exactor, for it to be ready to depart when he boarded.