The sound of my phone woke me up. I expected to see the smiling face of Beckett, that picture that I got to steal her, but I was surprised to see that who was calling me was the very Iron Gates! I quickly went to the police station imagining that something had happened, imagining the worst. I opened the office door of Gates and felt that a huge weight disappeared of my chest: Beckett was already there, sitting in a chair. I handed her coffee and she smiled me back, a little tense, I assumed it was because of my "perfect" relationship with Gates, she watched as me like saying: "What have you done now?" I sat glancing Beckett and she replied, shrugging her shoulders, she had the same idea as me of why we were there: none. Gates sat in her chair and staring at us, began to speak:

- Detective Beckett, Castle ... I suppose you have heard some of these murders of mobsters, not? - Beckett and I nodded - An undercover cop told us that they plan the murder of another COUPLE – she said, emphasizing the word - and we need to make us go through this couple for a week or so, we have to go undercover and do all that they had planned to avoid suspicion. In due course the murderers will receive green light and there, we will catch them... - Beckett went to ask something but Gates raised her hand and she kept talking - We will be in touch with each other. My boss and I have been evaluating those who are most appropriate for this work - Beckett suddenly looked up and I knew that she had already guessed why Gates wanted us - and we have decided that both you are perfect for this job.

- NO! – Said Beckett, suddenly rising from her chair - if you want, send me, but not with Castle.

- Beckett, I... - I began to say, but I stopped. She said that to protect me or because she doesn't want to have to pretend something that she did not feel...? I stared at her, confused.

- Look Castle, no offense, you are very good with clues and theories, but in the moment of get into action you're as a nine year old on a sugar rush, totally incapable to taking anything seriously. - Beckett said, looking me into my eyes. She looked away before I could be sure but I saw something strange, like if she was hiding the real reason.
I breathed deeply and said:

- Beckett, I have changed, you may not realize it but I matured after your shot ...

- Oh yeah? Well look I'm not quite sure of that.

- Hey, we've been together four years and if you had told me that at the first years I would have accepted it. But now?! No, Kate ... I refuse!

Beckett was going to answer me but Gates stood up and we both sat down, I had not realized that I had got up to speak:

- Enough! The couple fights out here! Detective Beckett, you will obey my rules for that I am the captain. And you, Castle, will behave because if you don't behave, I don't care your relationship with the mayor, the days of persecuting the Detective Beckett will end. Now, please, go away to pack up what you need and return in two hours to pick up all equipment.

We got up to leave and I was about to cross the door, when Gates called Beckett:

- Detective, you have to pretend to be a gangster, so please dress... sexy.

I had to bite my tongue to keep from laughing in front of Gates and Beckett, difficult thing, especially when I saw the face of annoyance of Beckett. She passed by my side and I could see, without needing to tell me that she was angry with me. I was going to follow her and fix everything but I thought that maybe was better later.