Awwww, I wanted to be the first to write about the preview but AllusiontoAnIllusion beat me too it... Oh well.

So, DO NOT READ IF YOU DON'T WANT TO BE SPOILED FOR SEASON 3 EPISODE 1!

This is my take on the preview, just Beckett's thoughts during the preview and a little of what she may have been thinking before the events of the preview.

I DO NOT OWN CASTLE!

See you in the fall, my ass. He didn't intend to come back from the start.

She had ignored it for weeks, thinking he was probably just too busy but, as the last week of September rolled around, she couldn't deny it anymore.

It wasn't a shocking revelation, just a depressing one. If she was honest with herself, she had known it for a while now; she just didn't want to admit it.

Over the summer Beckett had consoled herself with the thought that once he came back, maybe they could at least patch things up between them. But now there wasn't any hope of that happening.

He may have hurt her emotionally, but she would be damned if she let him hurt her career as well so, she always went to work and did her job as efficiently as always. In fact, she threw herself even more into her work to keep from dwelling on thoughts about him, especially after she realized he was not coming back.

So it was just another normal day for Beckett when they got a call from a bar where a man was found dead. Every witness they talked to said that his wife was with him right up until the TOD so naturally, they went looking for her. It didn't take long to secure her name and address then Beckett, and the guys, were heading up the elevator of a decent apartment building.

They found apartment 417 quickly enough, and just as quickly they noticed the door was ajar. Drawing their guns, Beckett peered through the door to see what she could before quickly pushing the door wide open and the three detectives rushed in, quickly clearing the main room. There was a closed door, presumably leading to the bedroom, and Beckett's attention was drawn to it as a thud sounded from the room. Signaling to the guys that she was going in the room and to watch her back, she quickly burst through the door with a swift kick and a yell of "NYPD!".

The room wasn't exactly known for having the best lighting but she could distinctly see a male figure in front of the bed. The second thing she noticed was the gun held loosely in his right hand. Ryan and Esposito saw the gun as well and then there was a flurry of "put the gun down!"

"Whoa!" Her heart skipped a beat at the voice, then stopped altogether when she got a good look at the man. Without her knowledge, her arms that had been steadily pointing the gun at him started to drop at little.

"Castle?" It wasn't the usual "What the hell are you doing?" tone that she usually used. Instead it was a different tone altogether. A tone full of emotion that she really didn't want to get into right now.

His rather unemotional, compared to hers, reply didn't exactly help either. "Beckett?"

To shocked to do anything else, she asked the first question that came to mind. "What are you doing here?"

"I-uh…" He turned to glance at the dead woman lying on the bed and what little light there was in the room glinted off the gun and the "Detective Beckett" side of her brain took over and pushed all other thoughts of him to the side.

"Down! Put it down!" That spurred the guys into action as well and they started yelling for him to put the gun down.

"No, no its o-"

"Drop it scumbag!" She wasn't exactly sure if Ryan was really angry at Castle, or he was just caught up in the moment when he said that. It could be either one since she knew that she wasn't the only one that took him leaving hard.

"Whoa, okay guys, easy. It's not what it looks like." He tried to explain himself but it wasn't helping him any.

Beckett was in full detective mode by now as she walked towards him, cautious but not as cautious as she would be with a normal criminal. "It never is. Turn around." He hesitated for a second but then the guys were right behind Beckett as she spoke again. "Castle, turn around."

She was very pleased at herself when her voice didn't waver or crack when she said the next words which immediately reminded her of the first time they met.

"Richard Castle, you are under arrest for murder."

This was undoubtedly going to be one of the hardest cases she had worked. She highly doubted that he actually did it but, once wind gets out about this, everyone is going to think that her team is covering for him. They would have to make sure that this case was air tight, that there was no way the lawyer of the true murderer could claim that they had given Castle special treatment because he was a friend. They would have to do this completely by the books, even if it meant they had to treat him exactly as they would anyone else they found standing over a body with a gun in their hand.

So even though I have plenty of other stories I should be working on I wrote this... I really wish I could find a way to keep myself focused... So this was purely based on the preview but I had a little idea about something that could happen after this though I highly doubt will actually happen in the series. Though, it could but I doubt it.

So if you want me to leave it like this let me know, if you want me to add another chapter of my idea of what could happen let me know too lol!

Also, this is me not so subtly asking you to pretty please watch my first ever Castle video? The link will be in my profile in a few minutes.