Kate Beckett was packing her last things to move in with Rick (well actually she moved in six month ago but she still had some things that needed to be taken care of) when she noticed something falling out of one of her mother's old books at the very bottom of the bookshelf. It was an envelope -wich she knew she had never seen-. She was curious so she took it.

She sat on the floor because of her pregnancy making it more dificult to stand really long (she was five months pregnant). She opened it, it was a letter from her mother. She was a little scared to read it because her mother had died ten years ago. Kate had gotten all of her mom's books when she died. She began to read:

Katie

If you're reading this, it means you have got my books and I'm no longer here to tell you this in persone. I know I haven't told you much about my life before I lived with your father. What you're about to read is going to be hard considering I never told you but you need to know.
I got pregnant when I was eighteen. I gave him up for adoption. I wasn't ready to be a mother back then and didn't have any help. I'm so sorry I never told you. You have a brother. I don't know where he lives. I only know his name (I gave it to him and asked his parents to keep the name). Tony. I don't know his last name but I'd really like you to find him. You don't have to but I'd like it if you at least knew who he is. Again, I'm sorry I didn't tell you before.

I love you.

Mom

Kate had tears in her eyes when she put the paper on the floor next to her. I have a brother, she thought, I need to find him. With that thought she stood up, grabbed her keys, got out of the appartement and made her way Home.

When she reached the building she was crying. She tried to put herself together but she couldn't, so she just got into the elevator, still crying.

She knocked on the door because she didn't have the power to get her keys out of her pockett and when Rick opened it she threw herself at him and cried even more. He was surprised but wrapped his arms around her, closed the door and led her to the couch where she cried for a couple more minutes. When she stopped Castle asked:

"What happened Kate?" "I have a brother".

He was shocked to say the least, he wasn't expecting something like that. He asked and she explained everything from the beginning and he agreed to help her find him.

"Okay first of all you need to calm down, it's not good for the baby if you get too stressed. Second Where do we begin?" Rick asked resting a hand on her stomach.

"When I was done reading I noticed an adresse at the bottom of the letter, it was the number of the adoption agencie, so I could beging with calling there." He nodded so she picked up the phone and dialed the number.

"Hello my name is Kate Beckett...I wanted to know if it was possible to find someone who was adopted?...okay...I only know his name is Tony...my mother...Johanna Beckett...great...thank you very much...I'll be there...goodbye!" she put the phone down and sighed.

"I've gotta go there personaly they can't tell me anything on the phone, but they have informations. Would you come with me?"

"Yes of course let me take my keys, we're taking my car." With that they got to the car and drove to the agencie.