Disclaimer : Castle is not mine.

At the precinct :

Alexis has been gone overnight and no one has gone home, no one realized how much of an impact Alexis had on the precinct but apparently she was cared for a lot more that anybody really knew.

The van in which Alexis had been taken in had been ditched in a blind alley and swapped for another one trouble is there are no car tracks and no footage to show the make, model or anything they were all lost. Everyone was either on the phone or going through footage again trying to see something no one else did.

"What was in the envelope..." Beckett questioned some hours later. And that's when it all clicked what Alexis had been saying.

Beckett rushed to her desk from the break room to open her draw. Beckett couldn't find her key where it usually was, by now everyone was looking at her, Beckett started hitting her desk anything she could do to open it.

"Beckett what are you doing ?" Castle said in an exhausted tone, he's been crying for hours.

"The envelope Alexis gave me, she said it was he key, it said open when, gosh dammit why won't the draw open already !" Beckett said standing up and full on kicking her desk draw which splintered and all that was left was a hole i the draw.

Beckett reached in and took the envelope out and opening it, well more like tearing the envelope in half without damaging anything inside. All the pages fell out, Alexis' drawings, her letters, everything. Beckett and Castle dropped to the floor to try and gather everything up. When they got everything they scrambled to their feet and rushed to Beckett's desk.

"Castle there's a letter addressed to you here." Beckett said handing Castle the smaller envelope.

Castle opened the letter and there were instant tears in his eyes.

Dear Daddy,

If your reading this I'm most probably gone by now, I'm sorry I had to leave I didn't want to.

I was taken because I witnessed a murder a few days ago, one of the murders you and Beckett have been investigating, I can't remember why I was walking past that alley but I was and I heard the girl scream daddy I went to see what was wrong and there were these tall men there, scary men and I ran, I ran as fast as I could but they caught me and they threatened me said if I told anybody they would do something and make sure they knew it was my fault. I couldn't risk them hurting you or anybody else.

In this envelope you will find drawings of the people who most probably took me.

I trust you will try your hardest daddy but if your too late I need you to know I love you and I am so grateful for all the things you do for me no matter how embarrassed or angry I seem I appreciate it.

If you don't find me I hope you and Kate are happy together, I know you guys are going to end up married.

Dad I want you to move on if you can't find me don't try looking for me constantly and forget to live because dad nothing would pain me more then knowing you didn't live because of me.

Make sure no one forgets me please just a single memory is always enough whether its a good memory or a bad memory. I know you have enough memories to share with everyone.

I'm going to quote Beckett here "Don't be so caught up in the past you forget to live."

I love you daddy and don't worry we'll see each other again someday...somehow.

Love always your grateful daughter,

Alexis xx

By the end of reading Alexis' letter Castle was sobbing, he couldn't bare the thought of never seeing Alexis again.

Dear Kate,

I know we don't know each other that well but Dads always talking about you and how your the best. So, I hear forth give you my case.

I know your going to read dads letter so there is no point in me telling you this stuff.

Kate I din't have much time, I was a liability to these people.

I am entrusting you with my farther's heart and I want you to make sure he lives make sure he doesn't fall down a rabbit hole like you once did.

I never told you this but I look up to you so I summoned my inner detective and put this envelope together, I found a loop hole.

Kate please keep my farther living even if you have to drag him out of the loft or where ever make sure he doesn't loose his one of a kind out look on life.

Love always,

Alexis xx.

Kate couldn't believe this, Alexis made sure they knew all this stuff, she risked everything to make sure they did. Kate looked over to Castle she walked over to him and hugged him whispering in his ear, "You have a very smart girl Castle she might have just cracked this whole case wide open."