A/N: Hey, nearly done now. Enjoy.

The Doctor, Rose and Jack crept silently to the old factory that the mind link had led them to. The Doctor could feel Bria's pain, and the feeling grew stronger as they drew near.

Carefully the three companions slipped into the door at the side of the building, all keeping a lookout for any guards, despite Bria's assurances that there would be none. Now they had her, the Correllix did not fear attack. Finally the came to a passage, to one side they could see stairs leading to a viewing platform. Ahead of them was the door to the room which the platform looked down on. Silently, the companions moved to a small alcove in the wall and settled down to wait.

For what seemed to Rose to be the thousandth time that night, Jack checked his watch. Trying not to make a sound she looked over at the Doctor, he was sitting with his eyes closed, trying to wake the still unconscious Bria. As she watched, he shook his head and opened his eyes, meeting her gaze as he did so. His almost imperceptible nod told Rose that he had been successful.

Once again Bria woke from the depths of unconsciousness, the voice of the Doctor giving her something to concentrate on. This time she stayed completely still, giving the beasts around her no indication that she had awoken. She could hear them moving around, preparing for the ritual that would end her life. For a moment she was almost scared, a slight feeling of panic rising to turn her stomach. The Doctor must have felt it, for almost immediately, his voice filled her mind, calming her.

The three companions jumped as a roar filled the room next to them; suddenly the passage was filled with the sound of claws on stone as the Correllix moved towards the room. Jack counted at least ten, Bria had told the Doctor that there were fifteen altogether.

Finally the tramping stopped and the companions moved silently up the stairs to the viewing platform. Hiding in the shadows they looked down at the scene below them.

Bria was slumped against the far wall, the chains around her wrists preventing escape. The Correllix had gathered around a raised platform where the largest of them stood. This beast was obviously the leader; it was huge, the spikes on its back dark and sharp. As they watched, the leader made a gesture; two of the beasts moved towards Bria and grasped her by the arms, removing the chains from her wrists. Quickly they dragged her to the centre of the room and secured her to another pair of chains, these ones hanging from the ceiling.

On the platform, Rose loaded the crossbow. Jack carefully slipped a gun from one of the holsters on his belt. The Doctor removed the sonic screwdriver from his pocket. They were ready.

The Correllix leader picked up a wicked looking knife from the platform, the others had formed a circle around the chained girl. As the leader began to move towards Bria, the other Correllix began to chant in deep guttural growls and roars that spoke of bloodlust.

The companions readied themselves.

As the leader moved to thrust the knife into Bria's heart, her eyes opened. Taking advantage of the surprise, Bria swung on the chains, kicking out with both feet at the beasts head and sending it sprawling across the floor.

On the platform, the companions sprung into action, Rose began to fire crossbow bolts into the crowd of Correllix, the laser sighted weapon rarely missing. Jack had leapt off of the platform and begun to fire at the beasts, clearing a path to Bria for the Doctor who had jumped down beside him. The Doctor ran to Bria, dodging a furious Correllix on the way. Grasping the chains on her wrists he held the screwdriver to them until they snapped.

Quickly he passed her the black leather case he had strapped to his back, which she unzipped, revealing her sai blades. Returning his grin, she spun them in her hands and turned to attack the beasts.

The roars of the Correllix filled the building as they fell; many of them went for Jack, eager to kill the strange man with the strange weapon, only to be felled by several bullets. Jack was unsure why the gun was keeping them at bay so well, unaware as he was that they had never come across one before due to the Vrexian's refusal to use them.

Rose was seriously hoping that it would be over soon, she was running out of crossbow bolts and the Correllix were starting to try and climb up to her. If they managed, or got past Jack to the stairs, Rose had no doubt she would be killed.

The Doctor was using the sonic screwdriver to stun the beasts before knocking them down with kicks or punches. Bria followed close behind him, driving blades into the stunned beasts, or dispatching those who came at her. She was caught in the thrill of the kill, an angel of death dealing with her enemies.

Finally, the last beast screamed as Bria drove both sai blades into its neck. For a moment, they stood in the sudden silence, the bodies of the Correllix littering the floor. The Doctor looked at Bria, and grinned before enveloping her in a hug. As Rose came down the stairs he let Bria go, leaving room for Jack to run to her. Rose smiled as she hugged the Doctor, and they watched as Jack swung Bria round before kissing her.

As they hugged, only Bria saw the leader of the Correllix move. It lunged at Jack, the extended bone spike in its forearm aiming for his heart. Bria grasped Jack round the waist and spun him away, placing herself directly in the path of the spike. Drawing a blade, Bria met the monster as it charged.

The force of the beast hitting her knocked Bria backwards, she felt her blade sink into its body. The Correllix leader screamed its final scream. Falling backwards it hit the floor and as it did, began to disintegrate. All around the room the rest of the Correllix did the same, flesh disappearing as smoke, leaving nothing but bones. It was finished.

Jack got up from where he had fallen, moving towards Bria as she knelt by the bones. He watched as she placed her sai blades on the floor, and caught her whispered words. "It is done, my promise is kept."

"Bria?" Quietly, Jack called her. She turned to face him, moving into his outstretched arms. Resting his head on hers, Jack looked at the bones of the Correllix behind her.

Only after a while did he see the blood that coated the bone spike.

"Bria?" Jack held her at arms length and looked into her eyes, a single tear rolled down her cheek.

"I'm sorry, Jack." The colour drained from her face and Jack only just managed to support her as she collapsed to her knees.

"Jack, what happened?" The Doctor and Rose had rushed forward. They stopped short when they saw Bria's hands, covered in her own blood.

"I'm so sorry, so sorry." Bria gasped for breath and slumped against Jack. Gently he eased her so that she was lying down before opening the long black jumper. As he moved her clothing his breath caught in his throat; the spike had caught her near the heart, dark blood pulsed from the wound. A single look told everyone there that the wound was fatal.

Jack tried to smile at the dying girl. "It's ok, you'll be fine."

Bria shook her head, her breath shuddering. "No I won't, if I was I wouldn't have kept my promise."

"What does that mean?" Rose asked.

"I couldn't tell you that the only thing to truly destroy the Correllix was the heart blood of a Vrexian. You would never have let me go through with it."

"You knew? You knew that you were going to die? Why did you still do it?" Jack shook his head, unable to understand.

"A promise to the dead." The Doctor answered. "It's one of the strongest promises a Vrexian can make." Bria just nodded, her strength ebbing.

Jack said nothing, unable to speak. Gently he lifted Bria's shoulders from the floor; cradling her as the girl he thought he had been falling in love with lay bleeding to death. Rose and the Doctor stood silently, clutching each others hands. Rose could feel the Doctor shaking as Bria's pain flowed into him through the still open mind link along with flitting images from her fading mind.

Jack felt a gentle caress on his cheek and looked down to see Bria's pain filled eyes. Gently she drew his head down towards her, touching her lips to his in a gentle farewell. "Thank you." She whispered. As they watched, her head fell to one side, and she drew in one last shuddering breath, letting it out in a gentle sigh. The Doctor and Rose hugged each other, tears streaming down Rose's face, the Doctor's eyes full of sorrow. A single tear spilled onto Jack's cheek as he gathered Bria's body in his arms and rocked back and forth, even now unwilling to let her go.

A/N: There we go, tell me what you think. Next chapter soon hopefully.