Right guys. I know I said that you were going to have to wait till Christmas for a sequel, but I've changed my mind. It may take me a while to update and for now this chapter is only a pilot. Just to give you the heads up this is set around season 10 and Amanda and Nick were brought in early to replace Olivia and Elliot. Hope you enjoy and please drop me a review! Also thanks to Olivia E. Bensler for her thoughts on Unsuspected Abuser. Go and check out some of her stuff... It's good! :)

Disclaimer: I own nothing.

Chapter 1: A Ghost Among Us

New York was just beginning to change. Everywhere you looked leaves fell away from the trees as they changed from green to gold. Winter was far away but still a slight chill hung in the air that indicated its presence was soon to be seen. As pretty as it may have appeared, dusk was settling firmly upon the city and people pulled there coats around them as they rushed home past darkening side streets. Huge crowds of people walked together, pushing and jostling to get to the warmth of their houses. Amidst all this though, one women walked slowly, dawdling through the the streets and past the closing shops. She looked as though she had nowhere in particular to go and unlike many others her head was not facing down towards the pavement. She looked happy and relaxed and if you didn't know you could have easily mistaken her for a tourist, but to the the well trained eye it was clear from her confident manner and sense of direction that she was at home within this vast city.

She walked with an air of authority and her face appeared kind and welcoming, not that any of the preoccupied New Yorkers seemed to notice. She was wrapped up in a coat and a scarf was wound around her neck before being tucked into the top of the coat. She looked mature, yet her face looked young and rejuvenated, and it was as though she had been on a long holiday and had captured the sun within her eyes. She continued walking throughout the streets and they began to calm as many people were now home. However, like any city life was still present within the now almost dark streets.

She entered Central Park as the night finally took hold. She was alert but relaxed and she steered clear of anywhere away from the footpaths. Occasionally she would smile at the late night dog walkers and other people that seemed to enjoy the park later on in the day. It was just gone seven and was the perfect time. All the hustle and bustle had died down but it was still to early for the criminals of the city to take over. Or so she thought.

She was still walking when she heard yelling. Nobody else was around and she contemplated calling the police. Suddenly though, the yells turned to screams and the woman knew she had to act fast. She listened for a second and her hearing told her the sound was coming from the trees to the left. She pulled out her cell and prepared herself to call the emergency services. Another scream rang out and the woman ran towards it, stumbling slightly on the undergrowth. She didn't stop to think as she came across the scene. Pinned to the ground was a women fighting against her attacker, his pants were pulled down and she was fighting to get away from him. The woman flung herself at the man and dragged him away from the girl on the floor. He was strong and fought against her, bringing his arm up around her neck and pinning her to a tree. His eyes looked wild and possessed, but instinct kicked in and she brought up her knee to meet his crotch. Within the second he was distracted she turned away a brought her elbow up to his face. She heard a satisfying crunch as he slipped to the ground. Unconscious...

By this time the person on the floor had sat up. The woman turned to her, panting, and realised she was younger than she had first thought. Fourteen, fifteen maybe. The women sat beside her and consoled the crying girl as she brought the phone to her ear.

"Police please."

xxxxx

Not far away at the 1-6, Captain Cragen left his office and entered the well lit squad room, it hadn't changed much since he had lost his best detectives two years earlier. One was recovering from a bad time in his life and was doing well. The other he hadn't heard from since she had left. Now, at their old desks sat two rookies, but they where good at their job and had picked up what they needed to know quickly. He turned to them now shouting commands.

"Amaro, Rollins. The cyber rapist has shown up again. There's a fourteen year old at Central Park right now. Get your asses down there."

"Yes captain" Came a speedy reply.

"Oh and by the way a citizen has done your job for you. The guys that attended the call said they had picked up a women who knocked the perp out and tied him to a tree with his own rope before he did any damage."

The two detectives looked at each other and raised an eyebrow in silent admiration for what appeared to be one gutsy woman. They had been on this guys trail for weeks and weren't even close to catching him or any of his friends. There was a whole gang of them and from what they gathered they would pretend to be someone else online before arranging a meeting. It had gotten worse though. Not only were they preying on young girls and attacking them in the park but they had now escalated to kidnap. This girl had gotten lucky thanks to a complete stranger and hopefully this guy would spill the beans on where the rest of this pedophile ring were hiding out.

Both the detectives picked up there coats and headed to the park. It was swarming with squad cars and cops when they got there and already the crime scene was being investigated. Amaro walked over to the most authoritative character there with Rollins behind him.

"Hey I'm detective Amaro and this is detective Rollins can you tell us what happened here?" He asked, showing his badge.

The man scanned his badge quickly before replying. "Perp meets up with the girl and drags her into the bushes. She screams and the witness runs over and knocks him out cold before calling us. Both the perp and the victim are at mercy along with a couple of my men and the witness is over there." He stated before pointing. "She deserves one hell of an applause for what she did. She's got more guts than me, that's for sure."

Both the detectives turned to look at where he was pointing and saw a women standing there with a blanket around her. If Amaro had to guess he would say she was in her early forties, but she looked fit and healthy. She had longish, dark brown hair and was fairly tall and well built, yet slim. She had a small cut above her eye, but for a civilian who had just caught a rapist she appeared calm and controlled. He left Rollins talking to CSU and walked over to her bearing his small, polite, detective smile.

"Evening mam" he started. " I was wondering if I could ask you a few quick questions?"

She didn't say anything, but just nodded at him to continue.

"I was wondering if you could come down to our office, I'm sure you'll find it more comfortable."

"Where do you work?" The woman asked suddenly. Her response and question caught him off guard. It was a strange question for a witness to ask. She definitely didn't look like she had anything to hide.

"I'm detective Amaro from the Special Victims Unit mam. Down at the 1-6. Is that a problem?" He asked.

He watched as a flash of recognition crossed her eyes and she hesitated slightly, before eventually shaking her head and agreeing to come with him. Amaro smiled to her before calling over to Amanda and saying they needed to go back and interview the witness. She jogged over to him smiling, before turning to the woman standing next to him.

"Hi I'm Amanda Rollins. How you holding up?" She said comfortingly. The woman smiled back before saying she was fine and then they left together. Within minutes they were back at the squad room. Amaro sat the witness down in the nice interview room, whilst Amanda went to get her a cup of coffee before going to update the captain.

"Hey Cap. Just to let you know we got the witness next door and the vic and perp are down at Mercy." She said

"Fin and Munch are down there now getting it sorted. Get the witness statement quick so we can all go home." He sighed in reply. Amanda nodded before walking next door to see how far Nick had gotten. It was clear from the paper in front of him that he'd already got the witnesses name and a few other details.

"So miss can you tell us what happened?" Nick asked.

The woman took a deep breath before starting. "I was walking through Central Park when I heard shouts. I was going to call the police but then the shouts turned to screams and I knew if I didn't do something then someone was going to get hurt." The woman sighed and carried on. "I ran into the bushes and I saw the young girl beneath the guy. She was struggling against him. Crying and screaming. He had his pants down so I wrestled him off. He pinned me to a tree and I kneed him hard then elbowed him in the face. He was out cold so I rang you guys. That's about

Admiring her modesty Amaro thanked her, sensing she wanted to leave quickly. It was as though she had been here before and knew what it was all about. She stood up quickly before going to leave. Her face was flushed and she kept her head down low. Nick and Amanda followed her out into the squad room when suddenly the captains door opened. For a moment Cragen just stood there, staring at the witness. He looked like he had see a ghost.

"Olivia?" He whispered.

"Hey, captain." The woman replied back.

Please tell me what you think and thanks for reading!