A/N: Woooahhhh so thanks guys for the reviews! So many! So here's the next chapter...mostly stuff that you should recognise but my own story starts to kick in at the end. Hope you like.

It was a pretty normal day at work for both Arizona and Callie, neither of them had seen each other yet, but both had already given thoughts to the other, as was routine for both of them. Getting up alone was enough to bring memories flooding back for the both of them; it had been pretty much a year and a half that neither of them had woken up alone. Both were wrapped up in their own cases this morning, both of them trying to bury themselves in their work so that they could push thoughts of each other right to the back. Try, being the operative word there.

Arizona was thankful as she was paged to the ER, a young girl of about seven had to have an appendicitis; a very simple procedure but something to bury herself into at least. She caught sight of long raven locks and cursed herself as she instantly was thrown back into the thoughts she was so desperately trying to escape from.

'Hi.' Arizona said weakly, flashing a smile. Callie remained silent, she was angry. Very angry. Well that's what she was trying to convince herself anyway. She looked down at her chart; broken femur...not quite the big bone bashing case she'd hoped for but it would do for now. Arizona sighed and left Callie to it, not wanting to make the situation any more awkward than it apparently was. She left for the paeds floor to admit the appendicitis girl, Ruby.

Callie had accessed the broken femur in a matter of minutes; it wouldn't even need surgery, just a cast; she had been so desperate to cut. Operating meant immersing herself totally into the bones and the nerves and the cartilage and the ligaments: when she was operating Callie thought of nothing else but the job in hand and boy did she need that right now. Callie's thoughts were interrupted as her pager went off, she looked down, urgent page to the paeds ward. With a sigh, Callie begrudgingly stalked off to the sixth floor putting on her best angry face she pushed the doors open and slumped to the desk. Arizona was the other side, after a stolen glance from the both of them, they got back to their respective cases, checking the charts that they needed to.

One of the nurses, Rachel, was on the phone, Callie noticed that she looked alarmed at what she was hearing from the other end but shook her head as she continued to look down at the chart of her patient.

'We're on lock down.' Rachel's voice sounded through their thoughts.

'What?'

'Oh come on...'

'Well that's a joke right? A drill or something?' Arizona asked, even though she'd never experienced anything like this before. Before anyone could answer the peads reception was filled with the noise of everyone's pagers going off. All confirming the very fact that they were indeed on lock down.

'Ok...it's no joke,' Arizona put her head of department head firmly on and addressed the staff. 'Everyone. We're sealing the floor...I don't know why, and it doesn't matter why, but nobody goes in or out of those double doors. You check on your own patients and then check if there's any others in the cue. We don't have a lot of hands on deck and people...do not alarm the makers of the tiny humans...they will eat you alive.' Arizona finished on a lighter note, knowing that those tiny humans would detect any ounce of fear or uncertainty long before their parents caught on.

'I really thought that was a joke.' Arizona said, making eye contact with Callie for the first time that day.

'Sick joke.' Callie muttered.

'Excuse me?'

'Errr... nothing...'

'What? You can't be stuck on the same floor as me? That's a hardship for you?' Arizona could feel her anger building slightly at Callie; now was seriously not the time.

'Yes frankly. It is.' Callie said and with that she walked off to go and make herself useful with the kids.

Both Callie and Arizona racked their brains as to what could be happening to mean that they were on lockdown. It was no drill. What could have caused such a reaction? It was going to be awkward being trapped on the same floor but they would manage somehow, they had to for the kids. Callie checked on all her ortho-related kids before going and helping out with other kids; it broke her heart to see kids of just seven and younger with life-threatening diseases; she knew some of them wouldn't see Christmas. She could see Arizona's point of view; she supposed that that she saw this every single day, she saw kids die at the drop of a hat and more tragically, Arizona watched them die slowly and in a lot of pain. But she couldn't know that that would happen to their child. No. Callie wasn't going to let her win this fight.

It was getting too hectic in paeds, there were just too many kids for too few doctors and nurses. Everyone was talking at once, no one really knowing what was best for their patients.

'We have what 32 kids...4 doctors...and what...9 nurses...it's not enough!' Arizona's usual level head was slipping at the panic that was beginning to set in.

'Right...why don't you just put all the kids in the play room? I mean we don't have enough staff for the whole floor, so at least they'd all be in one place, one big room...we could keep an eye on all of the kids at once?' Callie looked straight at Arizona, expecting her to find something wrong with her idea and crush it.

'That's a brilliant idea! Stable one's can walk and we have wheelchairs so let's do it!' came Arizona's excitable response. 'Thanks!' She gestured to Callie.

Callie, still surprised that her idea was apparently a good one mumbled a 'whatever', grabbed her charts and went off to help move the kids.

Arizona stood open mouthed watching Callie go, god this was going to be a long day. She went to get some kids into the playroom, putting them in wheelchairs. She was moving one of her favourite patients first, little Chloe, she was a long-term so Arizona was more attached to her than the others.

'So Chloe, the bad news is less privacy, but the good news is your bunny can make friends with a very attractive bear from down the hall!' She knew the bunny was the key to Chloe staying calm.

'Thanks Dr. Robbins!' Arizona rounded the corner, almost running into the wheelchair that Callie was pushing.

'Woah...watch it!' Callie looked angrily at the blonde.

'Sorry, sorry, sorry.' Arizona said, even though she knew that it was as much Callie's fault as it was hers. As they walked side by side Arizona decided that as they were stuck here and Callie was obviously having a problem with being civil, she was sure as hell going to address the situation. 'I thought we were going to be friends?'

'You wanna talk about this now?' Callie replied, rolling her eyes towards the two kids they were transporting. 'We're on lockdown, moving kids, God knows what's happening and you wanna talk about this?'

'Well we're stuck here and we have to be together so yeah I wanna talk about this.'

'Ok fine, I tried being friends, tried rising above it, but it didn't work. So now I'm going to go the more traditional round of totally hating your guts!'

Arizona just sighed. Of all the things Callie could say she hadn't wanted it to be 'hate'. After depositing their children in the playroom Arizona ran after Callie: 'Woah, woah, woah, I don't deserve this, I have treated you with nothing but respect in fact and love...'

'No see now that's the thing, you think you have but you haven't!'

'You know I'm sure it feels great to act like I'm the bad guy here, but that's the biggest load of you-know-what that I've ever heard!'

'I have spent the last month trying to convince myself that I don't need kids. Giving myself lectures, saying it out loud to myself, to you, to Mark, turning myself inside out to want what you wanted, and then I stopped for a second and I thought did you ever try? To imagine what it would be like to change for me? Because I don't think you did, what you did was you dismissed my dream. My dream. Which says to me that you don't give a rat's ass if I'm happy. I never understood squat about who you are and now I do and I don't like it.' Callie was glad to have finally said those things out loud, in a way she felt all the stronger for it, telling Arizona how she felt and voicing the fact that she had tried to accept Arizona's way of life over her own.

'Oh really? Really? I'm supposed to change for you? Why? Because we're in love? I mean cause you fall in love all the time...men, women...' Arizona was now voicing one of her biggest fears with Callie, something they'd never really spoken about before; she had always been scared of losing Callie to a man, it was just a thought that never quite escaped her. For now though, her rant was interrupted as Dr. Sanchez came round the corner with the little api girl, Ruby. She was in obvious pain as she writhed around on the bed.

'I don't feel so good.' Came Ruby's small, panicked voice. Both Arizona and Callie moved towards the little girl, both eager to help ease her obvious pain. Both putting beside their differences for the sake of Ruby.

Arizona put her doctors head on fast, 'Her blood pressure's 90/60 and dropping, let's hang some more fluids!' Dr. Sanchez went and grabbed the portable ultra sound, even before it was done Arizona knew that this little girl needed surgery right away. 'Alright, Dr Sanchez you check her appendix, I will be right back!' Arizona ran off to get some equipment, Callie decided she wanted to hear the rest of Arizona's speech and ran after her.

'When are you going to forgive me for not being a good enough lesbian for you?' came Callie's question.

Arizona looked her up and down. 'When you do something to convince me that you're falling in love with me and not with being in love. When you do something to convince me that I am different from George O'Malley, Erica Hahn, Mark Sloan...' And there it was, the one name that did genuinely worry Arizona. She had always hated the fact that Mark had seen her girlfriend naked, had had sex with her on several occasions and she knew that in different circumstances they could've very well been a couple, and that thought absolutely terrified the peads surgeon. '...or even the girl at the coffee cart! You have a huge heart and I love that about you but I don't trust you why would I?'

Callie just stared at Arizona as she stared back, brown eyes meeting blue. For the first time Arizona was being completely honest with Callie about Mark and for the first time Callie saw that Arizona had always been threatened by him. Why hadn't she seen it? Her thoughts were interrupted as Dr. Sanchez came round the corner announcing that Ruby's appendix had 'gone pow'. Even Callie knew that something had to be done right away.

'Are we seriously going to do this Arizona? I mean...can we?'

'Look I don't know Callie, I know it's not sanitary but...if we don't do this I don't need to tell you that she'll be dead within an hour...I don't know what's going on right now in this building, but I would say that the fact we haven't heard anything further shows that there is definitely something serious going on so I don't want to risk going down to the OR floor, not just for Ruby, but for the rest of us too. Now you're just going to have to trust me here Calliope...please?' Arizona was feeling drained and right now she didn't have the energy to fight with Callie anymore. At the end of the day she was the woman she loved with all her heart, nothing would change that.

The use of 'Calliope' snapped Callie out of the anger that she had been feeling all day. Just that one word was all it took and all the love came flooding back, she hated this, hated the fighting. 'OK, let's do this. Of course I trust you Arizona.' Callie smiled for the first time straight at Arizona and she could see that she instantly calmed, her breathing slowing slightly.

'Right, I'm going to go and grab some sterile tools from down the hall, will you give the table in there a scrub, make everything as sterile as you can and give Ruby the local...you'll have to inject it into her back but Dr. Sanchez can help you keep Ruby calm enough to do so.'

'You're going to do this with Ruby conscious?' Callie was slightly alarmed at this fact, any conscious surgery was risky, most of all on a small child who just wanted her parents.

'We have no way of hooking her up to oxygen up here...we've just got to work with what we've got I'm afraid.'

'Ok, I'll go set up, it'll be fine, you've done this a thousand times Arizona.' Callie added in some words of reassurance.

'I've never done it live though...'

'You'll be great Ari, you know that, you're a rock-star when it comes to surgery on tiny humans.' Arizona looked deep into Callie's eyes and for the first time since they'd broken up she saw their future with kids. Then she looked away, no, she couldn't...could she?

'I'll be right back.' Arizona turned to walk around. 'Calliope?'

Callie's heard skipped a beat. 'Yeah?'

'Thank you.' Arizona smiled as Callie nodded, turning back to go into the room that would now become an OR.

'Calliope?' Came Arizona's voice again. Callie popped her head back round the door frame and looked questioningly at Arizona.

'I love you.' Callie stared after Arizona as she flashed her dimples and turned round the corner before Callie even got a chance to say anything back. She'd tell her when she came back. All Callie's resolve had gone now; Arizona had gone from fighting back, to voicing her true concerns and feelings, even if only briefly, and now she had just caved in and laid all her emotions bare. For the first time since they'd broken up, Callie saw their future without kids. Did she?

Her thoughts were interrupted as she heard raised voices coming from the paeds ward somewhere. She went to the door, not wanting to leave Ruby alone, and listened in curiosity.

Curiosity soon turned to horror.

'Please...there are only children here...'

BANG. BANG. BANG.

Arizona had begged for her life.

Then three gunshots had sounded.

Each shot felt like it was going straight into Callie's heart.

A/N: Reviews? (: