Will reply to your reviews but it might be a few days as real life is calling...
"No!" Jack screamed as he saw the Master raise the knife and his heart lurched when the blade was driven into the Doctor's chest.
"You murdering bastard...I'll kill you!" he roared and made a futile attempt at breaking through the barrier.
He finally gave up as rage was overtaken by grief and he sank to the floor.
He wished he'd never trusted the Master; should never have believed that there were real feelings beneath that smile.
The Doctor was dead or dying and he would regenerate and be killed again. He suddenly felt every minute of his age and wished Rose hadn't gifted him the curse of immortality.
He'd been trapped in hell and could do nothing as the creature invaded his body in a blaze of heat and pain.
As it flooded every cell, he knew he was lost...lost to something that should have died when he'd burnt worlds.
He felt the power of the Vortex flow through him and he felt the unfettered glee of the creature as it used him to open the temporal prison. Now he knew his fate was sealed; there was only one way to end it.
But it would never end...how could it when he couldn't tell anyone.
He tried to fight it as it used his body to tempt the Master...oh my Inari, I wish you could see what I could see.
Then pain had flared through his body and by some miracle the creature was forced back and his consciousness flooded back.
More pain flooded his already over sensitive nerves, but it felt wonderful...it felt real.
Now he could.
But he didn't need to, he could see it in the Master's eyes...he knew.
"Finish it," he said.
He saw the Master was hesitating and he could feel the creature reasserting itself.
"Do it," he hissed.
He heard the Master whisper. "I'm sorry, Si'arila" and then his world became pure agony.
The Master felt the blade hit flesh and slide between ribs and hit the heart.
The Doctor convulsed under his hand, but all the time their eyes were locked and he saw life start to fade from the Doctor's eyes
But he knew it wasn't over, he had to deliver the killer blow, the one that would drive whatever was inside the Doctor out...the one that would kill the only other child of old Gallifrey.
He wasn't sure he could do it. He had to go and fall in love and have children.
"Inari," a voice broke through his paralysis.
He blinked, the Doctor was still conscious.
"You have...to finish it."
The Doctor's voice was faint and there was the unmistakeable rattle of blood-filled lungs.
"Irlia tisah," he replied.
The Doctor managed to grab hold of the Master's blood slicked hand.
"Mirah...ses isha...rasi mah...kresha ist."
The Master shook his head and the Doctor arched into another convulsion and the light began to flicker in his eyes again.
The Master was torn, logic said he should, but his hearts refused.
The Doctor suddenly stilled and tightened his hold on the Master's hand.
"Ses isha..." he said faintly and the Master let out a cry as with strength from somewhere the Doctor twisted his hand and the knife and tore the blade from his own chest.
The Master was thrown back by a burst of energy and landed a few feet away.
He fought his way through the agony and knew that the Master had done what had to be done...but he hadn't completed it...why?
"Inari...you have...to finish it."
"I can't," the Master said.
He reached for and grabbed the Master's hand, felt the warmth of his own blood on it.
"Please...if you...love me...finish it," he said with great effort.
The Master shook his head...the idiot was letting feelings get in the way. He felt himself slipping again and he could feel the creature clawing its way back.
If the Master wouldn't finish it, then he would do it himself.
Gathering what strength he had he tightened his hold on the Master's hand and twisted it and the blade and tore it from his chest.
He convulsed as a surge of power went through him and he felt more that saw the Master being thrown clear...good...now to finish this.
The pain was excruciating but at least he knew he was still in control.
With supreme effort he got to his knees...he had to get to the... a wave of heat passed through him...the creature!
"No...not this time," he said through gritted teeth and using one of the control panels hauled himself up, not bothering to stifle the cry as pain shot through his chest.
He paid no heed to the steady trickle of blood that had now soaked his clothes and was dripping on the floor.
"Move!" he yelled at himself and took no more than three steps when his legs gave way and he felt a tiny flutter in his one good heart...time was running out; he needed to be alive to die.
He let out a laugh at the absurd notion and once again struggled to his feet, dizzy now from blood loss and lack of oxygen.
He took another few steps and fell again, hard this time and cracked his head against the floor.
"Se'vaha hesh mah!" he cried and this time he didn't bother to get to his feet; he began to crawl on his hands and knees, back towards the machine.
He was within grabbing distance of the machine when he heard.
"No," he said as a roar filled the air and then...they were free!
He reached out for the machine and the roof fell on him.
Ianto and Gwen scampered down the slope, one eye of the precarious ground and the other on the swirling mass that had grown till it was almost as wide as the cavern.
They had just reached the bottom of the slope when the roar filled the air and they stopped and looked at the swirling vortex.
They both backed away when something emerged...it was huge as in Abbadon huge, but there attention was taken by what followed it...not a creature but what looked like soldiers.
Ianto felt himself pulled down behind a rock...Gwen.
"That is not good," she said as the sound of thousands of marching feet filled the air.
The huge creature that had come through first let out another roar and turned towards the building.
It took two giant strides and raised an arm and brought it crashing down on the roof.
"No!" Ianto yelled before Gwen could silence him and thousands of figures turned towards the rock they were hidden behind.
Snarls and growls filled the air and at least a dozen figures broke ranks and they had no choice but to stand.
One of the figures let out a set of snarls and guttural sounds and they tried not to recoil at the stench.
The thing was at least eight feet tall, all teeth and had what looked like metal spikes protruded from beneath its helmet.
The figure repeated the same sounds and when it didn't get the reply it wanted it raised the huge sword it was carrying and swept it down towards Ianto.
Irlia tisah- I can't
Mirah ses isha rasi mah kresha ist- Please if you love me, finish it
Ses isha- if you
Se'vaha hesh mah- spirits help me
Inari- Beloved