Disclaimer. I do not own Spooks (MI-5). All copyright belongs to the BBC and KUDOS productions. No copyright infringement is intended nor should be inferred.

Prelude

The building was in shadow as the man walked along the concrete walkway at the side of the flats. He looked around him for a moment, his face set hard as he walked along, dodging the children running in the opposite direction to where he was headed. He kept his expression blank, his eyes on the route in front of him. He was a man on a mission and no one was going to put him off his plans.

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Ruth settled into her chair on the Grid, eyes set on the computer screen in front of her. The threat report for the last week was due but she had to admit it wasn't going to be much different from the week before. Concentrating on the figures in front of her she began typing only to be distracted by Will swearing as Ros and Harry walked out of his office.

"What?"

"Saint Hughes Heights." Will nodded towards the television in the corner as the picture changed to the screen. "Bloody Hell!"

"My thoughts exactly." Harry turned to the television. "Three men dead."

"They've not said that." Will stated.

"They wont." Ruth paused. "Not until they are told they can. St Hughes Heights." She bit her lip. "Its not a target. Its not on any of my watch lists."

"Maybe not." Ros stated. "But its on someone's. A triple murder. Professional and from what the police say carried out execution style."

"Look." Ruth pressed a few keys on the computer as the image the newsreader had highlighted came into view. "That's Steven Peterson."

"He's in prison." Zaf turned to her as Ruth shook her head.

"Apparently not." Ruth snapped.

"Who is he?" Will asked as Zoe and Malcolm exchanged glances.

"A very dangerous man." Ruth could feel herself begin to shake. "He was arrested the day Oliver Mace died. The day he tried to kill me."

"Ruth." Harry was at her side in a second. Ruth swallowed hard.

"And now he's back."

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a/n please review