Thought this was going to be the last chapter...but another chaper is need to finish this.
Jack had not seen or heard what had gone on before. All he had seen was his double overpowering the Doctor.
Without hesitation he clambered down the ruined building and when he reached level ground he drew his gun and fired off a warning shot.
"Stop right now or I will shoot!"
His double pushed itself of the ground, taking the Doctor with him and snarled words at him.
He levelled his gun at his double, hoping that it saw the threat and not the bluff; he knew he couldn't shoot, there was a chance that his double may use the Doctor as a shield; he had no way of knowing if it needed the Doctor alive.
As his double raised its hand, he knew what was coming and as he died he could hear the Doctor's anguished cry and he knew that whatever happened next he could not stop it.
Intense rage filled the Doctor as he saw Jack's immolated body fall to the floor; again this thing, this nightmare from his childhood had killed someone he loved.
When the not Jack looked back at him he snarled. "That was a mistake, time to die."
He let go of the last barriers that were holding back the fire that had burnt millions.
He snarled again as he saw fear in the eyes of the not Jack.
"Shall I show you what I am...do you really want to see. I am the Destroyer of Worlds, the Bringer of Chaos, Deaths' Companion, the Right Arm of Hades, the Fires of Vengeance, the Oncoming Storm. I am the Shadow That Walks The Day, I am Shesa. I am the Darkness That Devours. I am the Butcher of Skaro, I am the Scourge of Sulan...I am Death Incarnate."
He reached out and grabbed hold of the head of the not Jack and poured all of his rage into its head.
"I am the Doctor and I am the last of my kind."
It tried to look away from the Time Lord but could not, the fires in the Time Lord's eyes held it like a moth to a flame.
As it listened to the Time Lord reel of names that it knew from the creatures it had devoured in his long life, it knew that it had finally met its match...a Time Lord of all things.
Then the Time Lord had declared he was the last of his kind and that was it last coherent moment as what poured into its head was hell itself.
War, death and destruction on a scale it could only have dreamed of...it had missed so much in its exile, including the destruction of its captors...the very ones it fed on.
The ground beneath them began to shake and cracks began to appear beneath them and the two of them teetered on the edge of the huge chasm that screeched into existence.
It roared out its rage and managed to snarl. "Then you will die with me."
"I know," the Time Lord said.
The Doctor poured all of his anger and rage into the mind of the not Jack and it took it all and it roared out its rage and snarled that he would die with it.
"I know," he said.
He felt the ground shift under his feet and heard the ground splitting behind him.
Gritting his teeth he used what strength he had to pull and the two of them tumbled over the edge and into the black abyss.