The sound of bullet hitting flesh ripped out Jack's heart and the blood that flowed from the wound tore at his soul. He dropped the gun and ignored it as it clattered to the floor. He made to step towards the Doctor who had fallen to his knees.
He only managed a few steps when the Doctor rose from his knees. To his horror and shock the wound that had ripped open the Doctor's chest began to move and close, leaving only a blood stained hole in his clothing.
Jack went to move back but found he couldn't, he was being pulled forward by unseen hands until he was only inches from the Doctor and looking directly into eyes that were now almost black.
"You cannot kill the Chaos, I am eternal...even his people knew it as they tried. Chaos rules," the thing that inhabited the Doctor hissed.
Jack stared back into now cold eyes. "No...I won't believe that," he managed to say.
Cold eyes looked at Jack and then narrowed as if whatever was inside was thinking. "You think that he is still inside, hiding, waiting. Think again human."
Hands were suddenly clamped around Jack's head and his head was filled by a screeching that stretched and shattered his nerves, and then darkness took him.
Ianto had watched in horror as the sphere that had detached itself from the rest of the ship was swallowed by the darkness that hung in space. He knew it should be impossible, but he swore he could feel the malevolence radiating it from it.
He was distracted by the sound of movement behind him. He looked round and saw that Martha was coming round. He looked forwards again and to his shock the darkness was gone.
"What the...!" he said and scanned the whole area, it was gone, there was nothing but the stars and the Earth.
Steven James rubbed his eyes, he must be seeing things. He looked once more, no he wasn't seeing things. The darkness was no longer hovering over Earth.
He frowned, where the hell had something that huge gone?
Then the floor underneath him shifted and he looked not into the telescope, but out of the window...now he knew where it had gone.
On the hill that rose above the observatory stood three figures.
It wasn't the figures that drew his attention; it was the mass of blackness that hovered in the sky. No wonder he couldn't see it in the heavens, it was here.
Jack fought to regain his balance as he felt the metal surface of the sphere disappear beneath him and uneven earth replaced it. He blinked as dust swirled around him and he took several seconds to for him to get his bearings.
The first thing he saw was the Doctor. His back was turned, his body still wreathed in the black tendrils of what called itself the Chaos.
He turned slightly and saw White Coat and started when he saw him edging away. He only made it a few feet when he was stopped in his tracks and was dragged back by unseen hands.
"It is futile to run, the Chaos will consume all."
Jack breathing quickened as he realised that the voice of the Chaos was becoming more like the Doctor's, as if it was entrenching itself deeper into the Doctor's psyche. He had to do something and quickly.
He inched closer to the Doctor, whose back was still turned, but stopped when the Chaos spoke again.
"Tell me Jack Harkness...oh immortal Jack Harkness. Surprised I know your name, I know all that he knows. Tell me Jack Harkness, what would you do to save this little world? I can be reasonable, it is only tiny and their lives are fleeting and their fears will only feed me for a little while."
The Doctor turned to face Jack. "We could come to an agreement."
Jack stared at the Doctor, but spoke to the Chaos. "What kind of agreement?" Fear gnawed at his stomach, he wasn't that used to negotiating with Time Lord possessing entities.
"I will spare this world, this small galaxy if you allow me to keep this body."