This is just an idea I've had floating around in my head for a while that I thought I'd attempt writing. It's also my first attempt at a Castle fic.

(St Bart's will get written, I'm just struggling with the last chapter so I thought I'd try something different first).

Thanks for reading and I hope you enjoy it!

Edit: I mention this in chapter four but both season 1 Castle and Beckett and season 6 Castle and Beckett are from between episodes 4 and 5 of their respective seasons.

Disclaimer: I don't own Castle or the characters.

Beckett's head was pounding as she slowly opened her eyes. It took her brain a moment to register that she was on the floor of an abandoned warehouse. They had been working a case where they'd traced their main suspect to this very warehouse. Beckett tried to recall the events that lead to her being unconscious on the floor but no matter how hard she tried she couldn't.

She raised her head and looked around, realising that the entire warehouse had been cleared. That was when she also noticed that she wasn't alone, that there was someone else fast asleep next to her. She groaned when she realised who it was. Like her day wasn't already bad enough without him being involved.

"Castle," she whispered, and when that failed to rouse him she reached over and grabbed his shoulder, shaking it until he began to stir.

"Castle," she whispered again and he opened his eyes, staring confusedly back at her.

"Beckett?" He questioned, "what happened?" he continued, sitting up and taking in his surroundings.

It didn't take him to realise exactly where he was; they'd been here earlier that day. A man, Harry Peterson, had been found dead in his apartment and his business partner was a person of interest as he was the last person to see Mr Peterson alive. The police received information that he was last seen at a warehouse but when they'd gotten there, they'd found the victim's brother outside instead. He'd told them that it was actually his brother's wife that was the murderer. He even gave them a file that apparently was full of evidence that the wife was the killer and told her current whereabouts. Of course they'd asked him where he got it from but he refused to tell them.

Castle looked around but said file was nowhere to be seen. The brother had also told them something else weird, "Congratulations on the engagement" he'd said, which made absolutely no sense since neither of them were engaged.

The brother had then taken off running into the warehouse and Castle and Beckett had followed and that was the last thing he remembered.

"Is the last thing you remember chasing after Mr Peterson into here?" Castle asked, getting to his feet then offering Beckett his hand to help her up too. She reluctantly accepted and he pulled her to her feet.

"Yeah, but how come we both blacked out? How's your head?" Beckett asked once they were both standing.

"Sore," replied Castle, rubbing his head, "but it doesn't feel like I was hit over the head. You?"

"Same. What the hell happened Castle?" she asked exasperatedly. She had no idea what had happened and she didn't like not knowing.

She checked and she still had her gun and badge with her so that was something at least.

Looking down at her watch she gasped, "It's been almost 8 hours. It must be dark out by now and the boys will be looking for us. Let's get out of here, we have to find out what's going on."

Once they were outside they discovered another problem, both their phones were missing and Beckett's car was gone.

"Your apartment is closest, come on, let's just walk," said Castle, "the fresh air might do us both some good."


When they arrived outside of Beckett's apartment she had to check she had the right street because her building looked different than when she'd left this morning. Parts were the same and it did look similar but the colours were different and parts looked newer than the rest.

They got through the front door using Beckett's keys but when she tried to open her door, which again looked different than it previously had, her keys wouldn't work. Out of frustration, she grabbed the handle, shaking it knowing full well that she was for some reason locked out and shaking the handle would do nothing. She gave a surprised yelp when the door swung open to reveal a middle aged man in her doorway.

"Can I help you?" he asked, a confused look on his face.

" you live here?" she asked, taking in the man's appearance and glancing past him to see that none of the furniture in the apartment was hers.

"Yes, for the past two years. How can I help you?" He asked again, obviously confused.

"I…sorry, wrong apartment," she replied before grabbing Castle by the arm and pulling him down the hallway.

"What's going on Castle?" she asked. Things were seriously starting to get weird now.

"I have no idea. Maybe we should try the loft instead? I'm sure Alexis will be there."


Castle had stupidly left his keys on Beckett's desk earlier that morning so he was left to knock on the door once they reached his loft and hopefully someone would be home. But nothing could've prepared them for what they saw when the door swung open. Castle was what they saw when the door opened, well another version of Castle anyway. Beckett quickly glanced to her left to make sure Castle was still there and he was.

If one Castle is bad, two is going to be unbearable was the first thing Beckett thought but that was the least of her worries at the moment and before she could think too much about that what she saw next had her nearly passing out for the second time that day. Someone else stepped into the doorway and Beckett froze in shock, finding herself looking at another version of herself. Except this Kate Beckett was different. This Kate Beckett had long brown hair and was wearing an oversized shirt and shorts and for the life of her, Beckett couldn't figure out what she'd be doing, let alone wearing that, in Richard Castle's loft. All four of them just stood staring at each other, utterly confused about the interesting turn of events that had just occurred.

Thanks for reading. If you're interested in seeing more of this fic please review and let me know because I'll only continue if people actually want to read it since it's going to take a lot of effort to write.

Also, since Beckett's apartment blew up, for the purposes of this story, I said that it was rebuilt in a similar way to which it was before the explosion.