Chapter 1

It seemed like any other day. Well any other day since Arizona and Callie decided to go their own separate ways. It was just another day. Another day of Arizona wondering where Callie was, or what Callie was thinking, or if she ever crossed Callie's mind. It was the wondering that was killing Arizona. She kept her mind busy with cases of the tiny humans that needed her more than she needed to be consumed by Callie Torres. It was just another day…until the pages.

"Everyone! Everyone! We are in lock down. I don't know why, but no one goes in or out the double doors."

That was when it happened. That is the moment that would start the day that forever changed Arizona Robbins.

BEEP

"Are you kidding me with this right now?" Callie turned over in the bed of the on call room. "21 hours straight, I am down for ten minutes and they can't find anyone in Ortho." Callie stopped as she saw the distress code for lockdown. "Lock down? Why in the hell are we on lockdown?"

Callie rose from the bed and put her scrub top back over head. "Sheppard, this better not be your version of some new crappy hospital mock drill. These are God hands. I make cartilage with these hands and this brain. So help me God Sheppard, this better not be a drill."

Callie made her way to the door. As she opened the door she looked into the hall. Everything seemed normal. Normal other than the echoing sound of the double doors closing at the end of the hall. Callie stepped out into hall and made her way to the nurses' station.

"Come on, Sheppard. Call off the drill." Callie walked up to the nurses' station and asked the nurse. "So what's the deal? This thing real or not?"

"I don't know Dr. Torres. Everything seems real."

Callie let out a sigh. "Great."

Callie turned to walk back to the on call room when she heard gun shots. Callie turned quickly. "What the hell?"

People were running, screaming, and several were obviously the target of someone Callie was yet to see. It was obvious the gunman was just around the corner. Callie quickly jumped into a supply room closet. She waited. And waited. And waited.

It seemed like an eternity that Callie was in the closet, but she knew it had only been moments. There was a calm. No yelling. No sounds of running feet. Best of all, no gun shots. All seemed to be clear. Callie leaned toward the door to look through its window.

Nothing. Callie pulled her phone from her side. She called 911.

"Yes, this is Dr. Callie Torres. I am on the third floor of the hospital and there is a gunman."

"Yes. We have just been made aware of this." The dispatcher said. "Dr. Torres, can you tell me if anyone is hurt?"

"Yes! There are several people on the floor. I have to go now." Callie hung up the phone.

"Dr. Torres! Dr. Torres?"

Callie opened the door and slowly walked out into the hall. Looking around she didn't see the gunman. She quickly went back to the nurses' station to find the nurse had been talking to shot and killed.

Callie walked to everyone that was on the floor. They were all gone. People that Callie worked with everyday. People that were like family. People she loved. In that moment shock subsided and Callie thought clearly. People I love. Oh my God! Where is Arizona? Where is Mark? Christina?

Callie ran to the elevator and pushed the button. When the elevator didn't open she pushed it again. "Come on!" Panic started to win over Callie's thoughts. "God, please don't let them be hurt." She hit the elevator again. "Come on. Damn it!" Callie ran down the hall to the stairs. As she was running up the steps, skipping steps at a time, she came to stair where Arizona had once pulled her in for kiss. "You touch her, you son of a bitch and you will wish you were dead!"

Callie made it to the fifth floor Pediatric Unit. As she opened the door quietly she could hear nothing. There was only one problem; she was now on the other side of the double doors. "Damn it!"

Callie pulled her phone out again.

"Operator, Seattle Grace Hospital."

"Put me through to the Pediatric nurses' stations."

"Ma'am, the hospital is on lock dow…."

"This is Dr. Callie Torres and if you value your job, you will put me through."

"Yes, Ma'am. Sorry Dr. Torres I will connect you."

"Peds this is Amber."

"Amber this is Dr. Torres. I need you to open the door by the west nurses' station."

"I will be right there."

Within just a moment Callie was inside the double doors. "Where is Arizona?"

"Dr. Robbins is in room 541."

"There is a shooter in the hospital. Get everyone is safe place." Panicked, but listening the young intern did as she was told.

Callie ran into room 541 to find Arizona standing over a child. "Arizona."

"Calliope? What are you doing here? I thought we weren't talking about this." Arizona continued to work on the child in front of her.

"Can I talk to you?"

"I am kinda busy here. We are short staffed and now we have a lock down. Those two do not mix."

Callie turned Arizona around. "There is a shooter in the hospital. We have to get somewhere safe."

Callie walked over to the bed where the young girl laid. "Hi." She said with her best smile. "My name is Dr. Torres and we are going to move you."

"But it hurts." The young girl cried as Callie scooped her in her arms. "I know sweetheart. I know. We are going to make you feel better."

Callie walked by a stunned Arizona. "Dr. Robbins? Let's go."

Arizona followed her. They were almost back to the double doors, when there he was.

Breathing heavy and bleeding. "They….they shot me."

Callie looked at him and kept his stare for just a moment. "Mr….?"

"Clark. Gary Clark."

"Mr. Clark. I am going to hand this child to Dr. Robbins. She is a very sick little girl and Dr. Robbins needs to help her. Is that okay?"

Mr. Clark said nothing.

"Mr. Clark? This little girl needs help. She has nothing to do with what is going on here. You don't want to harm this child. I can see that. I am going to hand her to Dr. Robbins and you can let them go. I'll help you. I promise. Will you let them go?"

For the first time he looked at Arizona. "You are a surgeon?"

"Mr. Clark." Callie said again. He turned his attention back to Callie. "She is a pediatric surgeon. She helps kids. You don't need her. You need me. Can they go?"

He nodded his head.

Callie turned to Arizona handing her the child. "I am not leaving you, Callie."

"Go! I will be fine." Callie leaned in to make sure Arizona had the little girl. She whispered. "Go to the stairs. Go all the way to the first floor and out the side door."

"Calliope."

"Don't Calliope me. Go. I'll be fine."

"Callie, I love….."

In that moment, before that sentence was through; it happened. Arizona's world would change. The SWAT team was noticed out of the corner of Gary Clark's eyes. He panicked. Out of all that had happened that day, which Arizona and Callie were not even aware, the one thing he didn't mean to do happened. The gun fired.

Arizona Robbins will never forget that sound. Or the look that she shared with Callie as she watched Callie fall to the floor.