"Cartwright!" yelled Hunt as he re-entered the office.

"Yes, Guv," replied Annie, rushing over files in hand. "Do you want another coffee?"

"No…er, yes." She turned to leave. "Where are you going!?"

"To get you a coffee."

"Not yet! As everyone else is otherwise engaged you get a chance to show your detecting skills."

"Sir?"

"You're coming with me to take another look at that house. Everything leads back there."

"You're not scared of going on your own are you?"

"I'll send you back to uniform if I hear anymore lip like that from you."

"Sorry, Guv," she said with a resigned shrug of the shoulders.

PC Smith picked up the phone and dialled an impossibly long number -it rang - he waited for the other person to pick up.

"Go back to the house."

"But Doctor…"

"You've got to get there first."

Before the person on the other end could say anything he put the receiver down.

"Now, where was I? Ah, yes…keys."

"You're looking a bit green at the gills Cartwright," said Hunt, as he got out of the car. "Been eating in the station cafeteria again, have we?"

"I'll be ok in a minute, Guv." She noticed a gun in a holster on his hip, pointing to it she said, "Do you think that's really necessary?"

"Best not take any chances, ay love."

"Guv-,"

"I told you I know what I'm doing."

"No, look." She pointed at the battered blue police call box on the corner of the street. "Is that supposed to be there?"

"Good catch. That weren't 'ere before. Keep an eye on the car will you…I'm going to take a closer look."

"I'll just stay here then," she added, disappointed.

Hunt bowled it over to the police box, a conceited swagger in his gait. Meanwhile Annie glanced over at the house, sure she had seen movement in the window.

"Gu-," she decided it was more convenient if she went to investigate, then she could call Hunt over if she discovered anything important. He was only over the road after all.

PC Smith slid open the hatch in the cell door.

"Peek-a-boo," he chirped, grinning inanely. "Room service."

"I'll have the champagne," replied Sam with more than a little sarcasm.

"And how are we feeling?"

"Less than fantastic."

"Can I get you anything?"

"The key to these handcuffs would be nice and a way out."

"Well…lets see if we can't work something out, shall we?"

"Why are you being so helpful?" Sam suddenly felt a searing pain in his temples, like a really bad ice cream headache. "Argh!"

"Don't worry, that's just the medicine working."

"Medicine?" gasped Sam.

"It will erase the genetic memory of the Master from your system and hopefully Martha will retrieve the ring with the master template in 2006."

"Martha, Martha Jones?"

"Ye-s. Oh, by the way, the process may have some side effects."

"Like what?"

"Nothing to worry about. Just don't try to fight it."

Hunt could hear a strange humming coming from the box, like an engine purring. He wasn't quite sure what to make of it but he was never one for being shy when it came to challenging the unknown…he'd put up with Tyler's strange behaviour for what seemed like forever, hadn't he?

"Alright," he shouted, "If there is anyone in there, come out now!"

He doubted there was someone there but it made him feel better to hear his own voice. Hunt tried the door but it was locked. Without a moments hesitation he stepped back before attempting to barge the door open with his shoulder. Unfortunately this was the exact same moment the person inside opened the door and Hunt ended up sprawled in an undignified manner on the interior floor.

"We seem to have a visitor," said a voice, male, local accent. "You going to lay on the floor all day?"

Hunt looked up quickly getting to his feet, in front of him was a man with cropped hair and a leather jacket and just behind him stood a young blond girl.

"What do you think you're playing at you ruddy fool," growled Hunt. "Interfering with a police investigation-," his voice tailed off as he realised where he was standing. "Blummin' eck! It's bigger on the inside!"

"Hello?" called out Annie stepping into the house, the lock still broken on the door. "Is there someone there? It's ok I'm with the police."

She heard a sound…footsteps from up stairs. She decided to investigate.

"I'm coming up."

Annie moved cautiously hoping that whoever was moving around was friendly. She pushed the bedroom door open and stepped forward the floorboard creaking underfoot.

"Don't be frightened. Only me!"

Sam shuddered pain coursing through his body. His condition had rapidly got worse. He was having trouble remembering his name and the world around him was blurring. Flashes of the cell merged with moments from his life and others which weren't his…weird ceremonies and a whirling gyre, flames and vast armies. He squeezed his eyes shut trying to block out the images. Suddenly it hit him, a frightening scenario. He could see Annie lying on the floor of the Saxon house at the bottom of the stairs and standing over her was…him.

"Annie!"

Sam opened his eyes, and in front of him stood….his double.

"You can't save her," said the doppelganger.

"This isn't possible. You aren't real," insisted Sam.

"I'm real. It's you that's the fabrication. I'm the real Master."

"What did you do to her? You killed Annie!"