Castle has already got dressed and prepared a light breakfast for him and Kate when she exits the bedroom and walks to the kitchen. Rick turns and hands her a cup of fresh morning coffee. She takes the cup from his hands places it on the counter. Then she wraps her arms around his neck and places a soft warm kiss to his lips.

"Good morning" she purrs into his lips

"Good morning beautiful" he says with a smile on his face

"It is amazing how much better you feel after a refreshing shower" Kate giggles "not to mention other relaxing activities"

"So true". He responds while smiling down to his wife "I see you are feeling better this morning?"

"Very much better thank you."

"You heading straight to the station today?"

"I think we might go to the hospital and see how Angie is doing. I just spoke to Ryan and he said that there were some drawings found at the Texas compound that look like engineering documents. They are sending copies to the EOC. Kevin said they are getting engineers in to have a look in hopes of determining where and how the attack will occur."

"Kate, why don't I go into the EOC and see if I can come up with anything while you go see Angie?"

"That will work for me. You want to get a patrol car to pick you up?"

"No, I'll just drive the Ferrari. That will make the media think we are really just doing a drill"

"All right show off. The boys will want to borrow it to go to lunch you know?"

"Right! Call me and let me know how she's doing"

"Got it Castle" Kate steps up into Castle's space and he gladly accepts. A fast kiss and they are both out the door

Kate watches as Rick peels out onto the street heading for the station in his too fast for his own good car and her in her city issue cruiser. She's not worried about him getting stopped. He can outrun any vehicle the city owns

Angie Cooper is just finishing her breakfast in the living area of her current residence at the hospital where she was brought after her rescue. She looks up at the sound of a friendly voice

"Kate!" she says quite happily as she stands up to be sure she can get a hug. Where's Rick?"

"Hi Angie" Kate responds "Castle went on into the station to try to go over evidence. How are you feeling today?"

"I am doing fantastic. I feel great, but I am so ready to get out of here and get back to my job. The doctor says I might be discharged any day now. The drugs have completely worn off and physically I am getting stronger. They let me work out in the rehab area once a day after the regular patients have finished their sessions"

Then Angie puts a smile on her face as she looks toward the windows a little pensive. She seems to have more on her mind

Beckett sees the look on her face "What else are you thinking about Angie?"

"Oh, nothing much. I just haven't seen by boyfriend in a while. He doesn't know what I do for a living. He thinks I am with the State Department and travel all around the world. You know how it is, wanting to see your man. OH! Wait, you don't think about missing your guy anymore do you? You and your fellow get to go home together every night" Angie smiles at Kate

"Wait a minute Angie. We thought you and Charlie were a couple"

"Me and Charlie? OH NO! We were just working together on this case. My boyfriend is in Boston we share an apartment there."

Beckett looks at her note pad "Is the apartment in your name, his name or both?"

"His name. Why?"

"Well, we tried to find a listing for you in Boston, but there wasn't one"

"That's because it is under his name, Terry Baker. I just lived there part time. I guess I really don't have a place to call home. The closest Andrea or I have to a home is a safe house we get to use occasionally over in Jersey"

Beckett makes note of the boyfriend's name to follow up later with the boys "Listen Angie, I need to talk to you more about the attack. Are you up to it?"

"Yeah, Kate. Let's sit at the table over there" pointing toward the small round table near the television

After the two women get settled, Kate takes out her note pad "Angie. First I need to tell you that it appears all the separatists, or at least the ones still in the New Mexico and Texas compounds are dead"

"Dead? They get killed in a raid? What happened?"

"They died from smallpox. They tried to inoculate themselves and overdosed on live virus became infected and died. It is pretty gruesome I understand. They have been dead for several days and then left in the Texas and New Mexico heat..."

"I understand " Angie comments "I'm glad I was not in the strike team that found that"

"Yeah! Me too" Beckett responds "So Angie, what else can you tell me about their plan? We have not been able to determine how they are going to dispense the virus. You had told us in an earlier visit that it was in the air conditioning system thru the filters. We have checked with the facility managers and they assured us that the AC system is secure and that no one can bring in contaminated AC filters into the building. Their deliveries are well protected from intrusion by outside forces. It appears that no attack can occur to the mechanical systems of the building"

"Charlie and I overhead a conversation between two of their members. The two men were heating and air conditioning technicians. We were in a little roadside café and we could not hear every word said, but we did hear them discussing 'filters' and in another sentence we heard 'air conditioning system'. We also heard the terms 'air flow' and something else that was a little odd 'air intake'"

"So by putting all these individual words into the conversation, you two deduced they were planning on attacking the AC system"

"That's what it sounded like to Charlie and me. At least at the time"

Kate has taken some notes and forwarded them to Castle, Ryan, And Esposito on their tablets

"Angie, I think you two did good. We just need to sort out the details"

About this time Doctor Sydney Evans walks up to the table "Hello Angie, good morning Detective Beckett. How are you two ladies doing today?"

"Very well, doctor" Angie immediately answers

"Very good doctor "Beckett responds "Tell me you have good news for Angie?"

"I do have very good news for her. We are letting her go home"

Angie's eyes light up "When?"

"As soon as you can get your bag packed and I can do the paperwork. But there is one thing. We need somewhere for you to go and someone to take you there"

Beckett immediately speaks up "I will take her with me. She and I need to talk some more and then I can take her to her apartment"

"That is perfect then. So if you two will get her things I will do the discharge and you two can go"

Angie rushes to her room, grabs the bag that Castle. What little Angie has are the clothes Kate gave her. Angie quickly is packed and ready to head out.

Angie looks at the bag "Oh I guess this really is yours. So I'll get all of the clothes back to you as soon as I get home and unpack."

"Angie, you can have the bag and the clothes. I won't be wearing them again" Kate is thinking about these being the items Josh gave her

"Thank you Kate. You are a great friend to have"

The doctor comes in with the discharge papers. He goes over the documents telling her to stay away from any prescription sedative for a few weeks. That it might bring on a relapse or mental confusion. For her to keep up the exercise program she began at the hospital and most importantly

"I want you to follow up with a psychologist that the agency recommends to make sure you are getting all the recovery you need. Here is his card. His name is Calvin Burke"

Beckett smiles "Doctor. I was shot last year and Dr. Burke helped me. I am familiar with him and I will make sure Angie goes to see him"

"Very good ladies. I'll wait to hear back from you and make sure you are ok, Angie. Take care"

Kate and Angie leave the hospital and walk out into the sun. Angie is taken back momentary by the brightness outside "Kate, it has been a while since I saw the sun without a window in between. It feels really good "

Beckett and Angie walk to Kate's cruiser and the two women get in and head to the 12th precinct.

Richard Castle can't stand to be the last one to arrive anywhere, but today he will be. He calls Ryan and tells Kevin for himself and Esposito meet Castle at the UN. Castle tells Ryan that he thinks if they look around the building they might just figure some thing out.

When Castle arrives at the UN building the two detectives have already beat him there

Esposito asks "So Castle, what you think we will accomplish if we are here instead of the precinct?"

"Not sure, but I know I think better if I am looking at the situation. I want to go inside and meet with the facility manager and talk to him"

Ryan responds "I talked to him earlier, his name is Julius Castro and he insists that there is no way that the terrorists can do anything with the AC filters"

"Castle chimes in "Let's get him to show us around and see if we can come up with something"

The trio enter the building and in a very few minutes are meeting up with the building manager

Introductions are made and Castle tells Mr. Castro why they are there today. He again insists that there is no way for this attack to happen because of all the precautions that are in place. After showing Ryan, Esposito, and Castle into one of the many Air Handler rooms where these filters are located, the three are now convinced that there is no way the filters could be attacked.

"Castle, I was right with you in the idea about the AC stuff, until we saw the size of the filters, That small panel truck could not have delivered even one of the filters here let alone the literally dozens that are in this building." Esposito starts

Ryan continues "Also from what Mr. Castro said, it takes 2 men full time just replacing the units. Once they complete replacing all the filters, it's time to start all over. There is no way they could have replaced all the filters with contaminated filters all at once"

"Right! I know. But we have good intelligence that the AC system is the attack point"

Than almost as if a light goes on, Castle runs to where Mr. Castro is waiting for his elevator "Mr. Castro? Does the air circulate throughout the building. Constantly?"

"No, we have to bring in fresh air all the time or the air will become stale. Why?"

Castle looks at the other two detectives "Show us where the fresh air comes in"

The four men travel to the roof of the building. After they exit the elevator, they have to climb several flights of stairs, out a door the n to a secure fenced in area.

Mr. Castro points to the fence "Behind this fence is the intake for fresh air into the building. As you can see you have to pass thru many security precautions before you even reach the fence."

They are looking at the maintenance gate that is locked.

"Do you have a key?" Castle asks

"Yes I do, but it takes two different keys to open this gate."

"Well, get another key up here, NOW"Ryan states firmly"

After waiting about ten minutes the second key arrives. Castro and the second key holder open the secure gate and Castle, Ryan and finally Esposito enter the fenced in area.

Castle suddenly stops. Hold his arms up, and yells

"GET OUT! GET OUT NOW!" He pushes his partners backwards as he takes his coat off and runs toward the air intake