For Sez&Mel: Hey SezzaLuvBones & Kick Caskett. I didn't like my other story, so I'm going to write a new one :3 You guys don't have to read it, but if you're reading this dedication then I guess you'd feel kind of obligated to right? Well, whatever, I dedicate this chapter to you guys…because you're both awesome. (Even if I know only one of you will read this no matter what I say ;] )

A/N: I had a random idea for a story. It has probably been done before but I'm writing a fan fiction about it because, let's face it, we all love Castle, and I would like to turn a random idea into an AU Castle story. I hope you like it. I'm going to try and incorporate some Caskett in it somehow (because isn't that what every Castle fan wants?) and if I do this right, this story shouldn't be too long. (The first Chapter will be slightly long, only to establish the beginning of the story. I hope this is okay.)

Disclaimer: Don't Own Castle.

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A sharp jabbing pain caused her to flinch as she tried to straighten her stance. Her eyes slowly fluttered open to the sight of the steering wheel of her car. She lifted her head from the steering wheel, in order to stop the incessant noise the car horn was making. She coughed and realised there was smoke coming from the bonnet of the car. She forced the door open and clambered out of the car as quickly as she could.

Detective Katherine Beckett had been in a car accident.

She moved away from the car quickly at realising it would spontaneously combust any moment now. When she felt that she was far enough she searched for her phone, but she couldn't find it. She began to stress as the jabbing pain in her back began to throb again. She looked down at herself, to see if she was seriously injured in any way, shape or form. The only physical injury she knew of was a scar across the top of her forehead, where her head meets her hairline. She felt a small amount of blood, but a large amount of pain when she touched it.

She needed to find someone, anyone. Or at least she needed to find a payphone. Or any way of contacting any form of civilisation. By this point, Beckett had morphed into panic mode. She walked alongside the road away from her now flaming car.

Beckett walked for what seemed like miles, but was merely a kilometre to the nearest shopping outlet. She walked into a small isolated deli and found a payphone. She considered Castle, but it was dark and she didn't know what time it was, so she called the police.

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Beckett opened her eyes only to see the roof of a hospital.

She sat up in her bed. The details of what had happened to her the night before were foggy, almost non-existent in her memory. She needed to talk to someone. She called for the nurse.

"Is there something you were needing?" a male nurse came in to her aid.

"Um," she moistened her lips out of feeling nervous, "I-I was in a car accident last night," her bottom lip quivered. The nurse merely nodded and left the room. She assumed he had gone to go check her details, so she relaxed slightly, and leant back in her bed. She looked around at the rest of her room. There were two other beds occupying the small space in the room. One bed was empty; the other was taken by a sleeping individual. Having not been left alone with her thoughts very long, Kate was brought back to reality by the presence of the male nurse and a doctor.

"Miss Beckett?" the doctor said as he looked up from a folder.

"Detective," she corrected.

"I beg your pardon?" the doctor asked with confusion.

"Detective Kate Beckett with the NYPD," she said as a standard greeting. At hearing her say this, the nurse and the doctor shared a look that concerned Beckett. The nurse left as the doctor sat by Beckett's bed.

"Kate, do you remember what happened last night?" he asked her in a clam voice.

"I crashed my car. I think it was about 7pm and…I don't remember much else," she said as she unconsciously brought her hand to the bandaged injury on her forehead.

"Do you really believe that you are a detective with the NYPD?" he asked, still calm.

"Yes! I don't believe it, it's true," she protested, "Call them. Better yet, call Richard Castle; he'll definitely vouch for me. I'm surprised he hasn't come here already. What hospital is this?"

"Miss Beckett, please remain calm. You want use to call Richard Castle?" the doctor gave her a certain look.

"If you're not going to refer to me as my job title, then just call me Kate. None of that Miss Beckett you keep saying," she said with a frown, she was growing more and more impatient, "And yes, call Rick Castle. He's been working with me for some time now. He'll tell you everything,"

Just as she finished talking, the nurse came back in to the room and the doctor met him at the door. They began quietly talking. Although she couldn't hear them, Beckett knew they were talking about her. The nurse nodded and left while the doctor walked back to Beckett.

"Where am I?" she asked with fury lacing her tone.

"Oh I'm sorry. You must not remember, because of your head injury. I am Dr. Harrison and you are at Gracie Square Hospital,"

"Gracie Square?" she asked as she grasped the arm rest of her bed with her hands. Isn't that a Mental Institution? She silently asked herself.

"Kate, please do not worry, we only want to help you," the doctor said as a kind of reassurance. It didn't calm her, but she physically calmed herself down and relaxed her hands.

"I need to go for a walk," she said to no one in particular.

"Oh yes of course. Feel free to walk around the grounds," the doctor said as he left the room. Beckett lay back in her bed. She needed to wrap her head around what was going on. No one believed that she was a detective and she was in a loony bin, was it a loony bin or was it a normal hospital? She wanted to talk to Castle, she needed to see him.

There was obviously some mistake. Right?

She got out of bed and decided to roam the grounds. She came across some sort of visitor's room, with a kind visitor's room.

All hospitals have visitor's rooms, she reassured herself. From her peripheral vision, she saw a familiar face approaching the doors, accompanied by a nurse.

It was Castle. A smile of relief graced her features. She knew he would come for her, she knew there had been some kind of mistake.

"Castle," she breathed a sigh of relief, "Castle!" she called to him. She walked over to him. She couldn't help herself; she pulled him into a hug. He flinched and pulled away.

"Is this the patient you're here to see?" the nurse asked.

"Um, no. I'm sorry I don't know you," Castle said with caution. He walked past her to someone else. Beckett frowned and began panicking again. She went over every detail in her head.

The car accident, the psychiatric hospital and now Castle doesn't even know her. What was going on?

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A/N: Okay so this was a really long chapter. Thanks for reading it though. Sorry if it was exhausting to read, but I wanted to establish some things at the beginning if people are actually interested in reading further. If you are interested in reading further, please let me know in a review. Thanks Xx