A young rookie cop walked on the scene with a vibrant, fresh feel that screamed that he was going to be green.

"Detective Castle?" a man called out from the other side of the room.

"That's me! Where do you want me sir?"

The older detective walked over to him and looked him up and down and said "We need you taking witness statements and then once we get a photo of our john doe, you need to circulate it around so we can try and ID this guy"

"Will do sir and please call me Rick." He sounded a little too friendly for a cop who was meant to be doing his job and not sucking up to his bosses.

"I assure you Officer Castle; I will not be calling you Rick."

"Rodger that. I will just be on my way then." He walked away with a grin on his face like he'd just accomplished something, even though he did quite the opposite.

Rick walked around for hours going from witness to witness getting statements from people who all have been watching way to much CSI and thought they could solve the murder with what they knew about forensics and crime fighting. After five hours of witness statements he finally got to move onto the attempted identification of the victim. No luck. He turned up empty and was ordered home by none other than his 'mate' from before detective Roy Montgomery.

"Castle, can you come down to the twelfth tomorrow I've got a job for you to do and quite a surprise up my sleeve" said Montgomery, but somehow Rick knew he wasn't lying about the surprise bit and something told him he was going to like it.

"Will do sir, see you tomorrow."

Rick opened up the door to his loft that his mother had left behind for him after she had died. Most wondered how he could afford such a place on a cops wage but he didn't dare to tell them the truth, he just told them that he came from money.

The place was so empty. Not another single soul had entered this house other than him for months, he was alone and he kind of liked it that way. His bachelor pad wasn't what you'd expect from the average 23 year old. Designer furniture, paintings, shelves covered in books and a huge kitchen because secretly deep down there was nothing better than cooking for Richard Castle.

He finally slumped down into bed not even bothering to have a shower and fell asleep.

His alarm failed to go off. Rick arose from his slumber 30 minutes before he was due at the 12th.

"JEEZ!" he exclaimed and quickly got up, had a shower, shoved some sort of food into his mouth that he was sure wasn't meant for human consumption and ran out the door.

Arriving at the precinct just in the nick of time he was welcomed by none other than Roy Montgomery.

"Hello sir" he said with a more than respectful grin on his face.

"Castle" Roy said giving him a nod in return. " I have a present for you, but I need you to do some stuff for me. It's going to take a while but I assure you it will all be worth it in the end."

"I'm up for anything sir, especially if there's a surprise waiting at the end for me."

"Ok, well then detective Parish will fill you in with the details. Get to work Castle."

"Will do sir. Thank you."

"So a female detective hey?" Rick asked with a cheeky smile plastered to his face.

"Castle I've got no time for your puny games. Montgomery wants you to go to these addresses and take these witnesses statements. They're the ones we didn't get around to doing yesterday so don't muck up okay."

"Yes mam!" he said still being a little too cheeky for Parish's liking. Castle walked off to the elevator doors about to make his was to the witnesses houses when he was stopped by Detective Parish again.

"Oh and Castle, he wasn't joking when Montgomery said you'd love your surprise."

For the next 5 and half hours Castle wasn't really listening to what anyone was saying, just took random notes here and there. He was more interested in what his surprise was and after his final witness statement he fled from the house back down to the twelfth.

The elevator doors opened and Officer Richard Castle walked out. Standing over by his Captains door was a young lady, maybe only two or three years younger than him and by god was she stunning. Long brown hair tied up into a messy bun and she was tall, oh god she was so beautiful. He walked over to Roy and stood there dumbstruck by her beauty.

"Rick, this is Katherine Beckett. She's a writer and she is going to be shadowing you for a while."

"I know who you are" he said softly. "I read you."

I hope you all enjoy and would love any reviews! I hope you like the idea of it being mixed around. This is my first proper fan fic so I,will try to post at least once a week hopefully more.