Martha couldn't stop the scream as the shadow thing took a pace forward. She'd almost been sick when it had breathed over her.
She let out another scream as it moved again, this time showing her all too real fangs in a jaw wide enough to swallow her whole.
She thought she heard the sound of someone running but if they were footsteps they were drowned out by the roar of the shadow-beast.
She tried to scream again but her throat was paralysed as she realised she was going to be eaten alive. She wanted to close her eyes but fear kept them open.
A blur of colour caught her eye and then chaos fell...
The shadow- beast lurched suddenly and staggered to one side, its roar of triumph turning to a yowl of pain.
It bent itself almost in half trying to reach the source of its pain, but it had danced away. It uncurled itself and looked round, then saw the source of its pain.
With a roar of anger and pain it turned its attention from its next meal and went for the new source.
It never reached it as more pain seared through it.
It whipped round, there was another causing it pain. It couldn't decide which to tackle first, so it decided on neither and went back to its prey.
That was its mistake as it was attacked from both sides and as it collapsed to the floor it felt its life force leaving it.
It let out a long howl before it breathed its last and its heart stopped.
Martha looked at the body of the thing and then at her saviours. She blinked, it couldn't be?
"Martha!" two voices said in union and both Gwen and Jack came into her vision.
She let out a sob of relief and would have fallen on her face if Jack hadn't caught her.
Jack gently laid her on the floor and then looked up at Gwen.
"I thought I'd lost you."
"Me, never. I followed the screaming. If there's screaming I know you've got to be there," Gwen said. "Is she okay?"
Jack looked down at Martha, who had chosen to blackout.
"Yeah, scared, but who would be."
Gwen looked over at the body of the creature. "What the hell was that thing?"
"I'm guessing it's what made everybody leave," Jack said. "More importantly, what is Martha doing here?"
Before Gwen had chance to answer another sound echoed through the deserted building.
They both looked in the direction of the sound and flinched when the night sky was brightened by what looked like lightning.
The Light stood at the bottom of the steps that lead to his temple. He could feel the power that was his, could feel the pull of it.
He began climbing the steps when a lightning flashed and hit the steps above him.
"Going somewhere, brother?" a voice he hadn't heard in millennia snarled.
The Light turned and there stood his brother, static and light arcing from his hands.
"Hello brother," the Light said and raised his own hands and electricity began to spark between them.
"It's been a while," the Darkness said casually as he cautiously moved one step up.
"Yes, but then again, how long does it take to remove the blood from your hand?" the Light said.
"I see you've chosen a human host. What couldn't find a better one?"
"It will suffice. But you took the body of a Time Lord, the last Time Lord. That brother would be enough to have you executed. You know the rules, no higher beings."
"Ah well, that would be true, if there were any of us left to enforce the rules. But alas, there is only me. I guess you could add genocide to my crimes. You know, it took a long time for our father to die."
The Light narrowed his eyes. "Then you leave me no choice. I will have to be the executioner."
"Then do it, if you can," the Darkness snarled and raised his hand.
Jack and Gwen carried Martha to the safety of a nearby building.
"That doesn't sound like a thunder storm," Gwen said.
"No, it doesn't," Jack replied. "Stay here, look after Martha." He said and moved back into the street.
He moved slowly towards the flashes of lightning and stopped behind a wall and peered over the top.
He couldn't believe the scene in front of him...it was like something out of Greek Mythology.
There were two gods battling it out and one was the Doctor and the other was...Ianto!