Disclaimer: I don't own NCIS.

Prologue

Thump.

The sound of a door breaking open rang though the silence. He looked up, loath to be interrupted during his work.

Thump.

Another door, this time closer. Realising that the NCIS agents were smarter then the FBI, he turned, heading for his secret exit, while fingering this gun.

Just then his door burst open. In came two agents, a man and a woman. Not the man he had expected but he would do. He covered his gun with his hand, hiding it from view.

'NCIS, freeze!' the man called out.

Smiling he raised the hidden gun and fired two shots in the man's direction. However, the woman collapsed. His smile faded, he needed to work on his aim. The man had returned fire but he was gone, disappearing into the wall. He could hear the man crying a name out, 'Ziva' but it didn't matter. He smiled as he continued along the tunnel.

His smile disappeared when the sounds of the tunnel door opening reached his ears. This man was better then he thought. He could hear him now, moving along behind him while telling his teammates where he and their injured comrade were. She mustn't be that injured if he left her, he thought as he stepped into a side passage. Oh well, he thought, she get more then she bargained for if she stays.

His smile long gone, he raised his gun, pointing it at the main tunnel. The man should be passing along here any moment. The sight of the gun repulsed him. He preferred to kill with his hands. This was so…impersonal. But it would do if it scared these agents.

The noise of the man sneaking along the tunnel startled him out of his thoughts. Annoyed at himself for getting so involved he leveled the gun and fired hitting the man as he passed. By his bad luck, that moment was when the man turned, changing a fatal headshot into a glancing blow. It did however, knock him out.

Now he faced a dilemma. Should he kill the man or not? A quick check of his watch told him that he didn't have enough time; he would leave the man to his 'surprise'. He turned and continued along the tunnel and out into the night.

As he walked away the building blew up behind him, while two figures, having just escaped the blast, called for their missing teammate with their injured one at their feet.

Author's Note: This is just something that popped into my head.

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