Jack took another step back as more of the black tendrils wrapped themselves around the Doctor.
"You will not touch what belongs to the Chaos," the Doctor's voice echoed with a hiss of something that wasn't human.
Jack stopped moving and his panic was replaced by anger and indignation. "Oh no, not this time," he said and once more advanced towards the Doctor.
"Hey, whatever you are, he doesn't belong to you, he doesn't belong to anyone!" he said angrily and only stopped when he was inches from the Doctor.
He tried not to wince at the sight of the black tendrils as they twisted around the Doctor. He looked into the Doctor's eyes.
"Come on Doc, I know you're in there somewhere, fight this thing."
The Doctor looked back at Jack, but there was no spark of recognition. They were dull and lifeless, only wisps of black flickered through them.
The Doctor stiffened again as the thing inside spoke once more.
"The Chaos has come, darkness shall fall, and the fears of the living shall become alive."
The black tendrils suddenly became more solid and encased the Doctor, and Jack was forced to step back as it began to solidify and harden. Crackling sounds filled the air as it became a solid mass, turning into what could only be described as a cocoon.
Jack swallowed hard. This wasn't good, not good at all.
The darkness that was the Chaos wrapped itself round the tasty morsel, hungrily licking at the edges of its soul. It could feel the power, almost taste it...so sweet and desirable. It could feel it resisting its calling, but soon it would not be able to resist and all that sweet tasting power would be the Chaos's and it would feed on the whole of time and in all the dimensions.
Ianto had managed to get both Gwen and Martha into one of the shuttles. He settled himself into the pilot's seat and then realised he didn't have a clue how to fly one. He thumped the front of the controls in frustration and then jumped when the controls came to life and the engines started.
Of course, the Doctor, he must have pre-set the shuttle. He sat back as the shuttle moved; there was nothing he could do to stop it. Wherever they were going, it must be somewhere safe.
"Be safe Jack," he said as the shuttle left the cruiser and set off on its pre-set course.
Jack walked round the solid black cocoon that had surrounded the Doctor. He reached out and touched it tentatively. It felt warm to the touch and somehow alive, and there were sounds coming from it, sounds of something or someone moving.
"I know you in there fighting Doctor. I'm here for you."
The Doctor felt like he swimming in warm tar and he was drowning...no suffocating. He could feel something at the edge of his mind...the Chaos.
He knew what it was doing. It was trying to find a weak spot in his defences so it could consume him.
'Let me in,' a voice whispered, soft and persuasive.
The Doctor mentally shook his head and tried to shore up his defensive wall. Pain shot through him as the Chaos squeezed his physical body.
'I could kill you and take what I want, but what use is a corpse to me,' it said. 'Join with me and you could have all you wanted.'
Images flashed through the Doctor's mind, Gallifrey in all its glory, his family, smiling and walking in the snows on Mount Perdition.
'You could be with them again, the Time Lords restored. Join with me and it will be.'
'No, what is past is past, it cannot be undone,' he replied.
Pain shot through him again and this time another image flashed through his mind...Rose!
'No, this isn't real!' he cried.
He saw Rose sitting on a bed, her back turned to him, she was weeping and they were not tears of joy. He turned when he heard footsteps and Jackie walked into the room.
"Oh sweetheart, what has he done this time," she said and sat on the bed. "Let me see."
He let out a gasp when she turned and he saw the bloody mess that was her nose.
"Why does he hate me mum!" she sobbed.
'You left her with a monster, when she could be with you," the Chaos said gently.
"Rose," he whispered and his defences faltered.
The Chaos saw the gap and took its chance and poured through the gap...it belonged to the Chaos now.
Jack hadn't moved in what seemed an age when he was distracted by White Coat letting out a groan and sitting up. It was then that Jack moved and not giving White Coat chance to protest he dragged him to the nearest chair and handcuffed him to it.
"I have somewhere nice and cold waiting for you," he snarled.
He was about to say something else, when a loud cracking noise filled the air. He looked round and his eyes widened.
The hard cocoon that was surrounding the Doctor was beginning to crack and was falling away.
Jack moved back over and watched.
At first he could see nothing, but as the hard casing fell away he could make out the form of the Doctor. Soon the shell lay in black shards at the Doctor's feet.
"Doctor?" Jack said as there was no sign of movement from the Time Lord.
The Doctor let out a long breath and Jack waited, expecting to see his Doctor come to life. When he did eventually speak it froze Jack's heart.
"The Chaos has come, darkness shall fall, and the fears of the living shall become alive."
Jack took an involuntary step back as the Doctor's eyes opened and brown eyes with flashes of black looked back at him.
"All shall fear the Chaos and all shall feed the Chaos. There is so much fear and I am so hungry."
"No!" Jack cried and without thinking pulled out his gun. "I can't let you have him!" he sobbed and with tears falling freely he pulled the trigger.