Callie was the first to wake the next morning. She wriggled up the bed so she was sat up. She looked over at her wife and sister, they were cuddled together. She smiled. At that moment, Arizona stirred, waking up Ivy.

"Morning sleepy heads!" Callie laughed.

"mmm…" Ivy whispered shutting her eyes again.

"Ivy… wake up!" Arizona yawned.

"mmm…" Ivy mumbled rubbing her eyes.

"Ivy Sylvester Torres! Get your arse out of bed!" Callie lauged.

Ivy swung her arm around to try and hit her sister but completely missed.

"Im not co-ordinated in the morning" Ivy smiled sitting up.

"But I am!" Callie smiled scooting closer and tickling her little sister.

"I hate you Calliope" Ivy giggled tickling her sister back.

After clambering out of bed, they sat at the island in the kitchen and ate toast.

"See, I'm not the only one who has butter and jam on their toast." Arizona laughed.

"You pair are not normal!" Callie laughed shaking her head.

After devouring their toast, Callie had an idea.

"Ivy? How would you like to come into work with us today? Maybe go and see Christina? And visit Marks memorial?" Callie said, her voice cracking slightly at the end.

"Yes! I would love that!" Ivy smiled.

"I thought you would like that idea!" Callie laughed.

"But you have to stay out of the way. In the staff room, or in the gardens." Callie added.

"No problems, ill just take my laptop in and write or surf the internet." Ivy replies.

The three of them jumped in the car once they had finished breakfast. The car journey was uneventful, but the same couldn't be said for the rest of that day.

Ivy felt strange walking into work with Callie and Arizona. After all it had been a while. Ivy also felt uncomfortable, knowing that Mark wasn't going to be there. This was the first time since his death, that she would have to face Seattle-Grace without him. Ivy was trying to ignore the thoughts about Callie's car accident and the plane crash, but it was getting harder and harder to ignore them.

Ivy hadn't got off to a very good start with Mark the first time she came to stay. He acted a bit of a tool around her and Callie, but she could tell after a while, that Mark really cared about her sister, so Ivy had learned to love him too.

As they walked through the entrance of Seattle-Grace hospital, Callie could tell that something wasn't right with her sister.

"You okay princess?" Callie says, placing a hand on Ivy's shoulder. Ivy flinched at the touch, she had been on planet Ivy, but as soon as she saw it was her sister she smiled. Tilting her head and frowning, to say she had no clue what her sister had just said.

Ivy had good days and bad days, but when she had very bad days, she refused to wear her hearing aids. She liked being isolated from everyone, even if it was just for an hour or so.

Callie sign languages the conversation to Ivy. When Ivy said that she was having a bad day, Callie reached over and tucked Ivy's hair behind one ear, so she could see whether she had her hearing aids in. Scowling, Ivy un tucks the hair from behind her ear. It made her self conscious having her hair like that.

"Don't. I want to be normal, just for today." Ivy whispered. Arizona had been completely unaware of the conversation up and till now. She put her arm around Ivy and rubbed her shoulder. There was not a lot of point talking to her, because Ivy would only hear you if she was lip reading.

Ivy put her arm around Arizona's waist and held on to Callie's hand. They walked like this together until they had to go their separate ways.

"I will see you later Calliope." Arizona smiled, kissing her wife on the lips.

"See you!" Callie smiled, walking off.

" I guess I am stuck with you for a bit today then!" Ivy giggles.

"Where would you rather be? On the children's ward with all the cute little people, or with all the bones?" Arizona laughed.

Ivy opened her mouth to reply, but Arizona knew what was coming.

"Don't answer that" She giggled, taking her sister in law by the hand, they walked up to Paeds.

Ivy was left in the staff room on her own. Arizona popped in and out a few times to check on her, and there were staff coming in and out every 15 minutes or so.

It was Arizona's break and she went to go and sit with Ivy in the staff room, but she wasn't there. She thought the girl had just wondered off to go and see her sister, so Arizona sent Callie a text.

'Hey baby. Is Ivy with you?'

'No babe, why?'

'She's not here with me. She's probably just wondered onto the ward. Love you xxx'

'FIND HER. Love you too xxx'

Arizona went out on the ward and checked all the places that she could think of twice. Ivy was nowhere to be found. She looked at her phone and saw another text from Callie.

'Don't ask questions. Come to the roof, make sure you're not followed. Don't panic'

Arizona walked off the ward but as soon as she did she began to run, naturally panicking. She burst onto the rooftop, and was surprised by what she saw.

Ivy was sat cross legged opposite her sister. Callie had hold of Ivy's wrists, and they were rested upright on Callie's knees. Callie was gently rubbing circles on Ivy's palms and wrists, helping her to calm down. This was how Ivy got over panic attacks, and she only trusted Callie to do it. Arizona ran over to them and knelt down to the side. Callie saw Arizona and signalled with one hand, pointing to her own ear, to Ivy, and then a thumbs up. She had just said Ivy had her hearing aids back in.

"Panic attack?" Arizona asked. Ivy nodded.

"It's being back here, since the plane crash." Ivy said, quietly. She found it hard to talk after having a panic attack.

"You should have come and found me. I am a doctor Ivy, I could have helped." Arizona says taking one of Ivy's arms and pulling her up and into a cuddle.

"I work with Children all day everyday, and then I have to come home to that" Arizona smiles, gesturing at Callie.

"I love you Arizona." Ivy whispered.

"I love you too Ivy, but please don't be afraid to come and find me." She replied. Callie stood up behind her sister and wrapped her arms around her waist, and around Arizona's waist, so Ivy was in between them both, while they were cuddling. This group cuddle lasted for a couple of minutes.

"We should probably get back to work" Callie whispered, resting her head on top of Ivy's.

Arizona separated from Callie and Ivy turned around hugged her sister. She put her head in the creak of her neck, taking in the scent of Callie's hair.

"I will see you at lunch time, in the cafeteria. Okay?" Callie says to both Ivy and Arizona.

"I will make sure she's fine, and yes we will see you then." Arizona smiles. At that moment both their pagers went off. Rushing back down the stairs to do their jobs, Callie and Arizona made sure Ivy was okay in the Orthopod staff room before they left.

At 1 o'clock, Ivy went into the cafeteria. She grabbed a jelly pot and joined Callie and Arizona at their table. Slowly the table began to fill up with familiar faces, and some new ones. After about 10 minutes of hugging everyone she hadn't seen for ages and making some introductions, Ivy finally finished her jelly pot. Everyone spent another half hour or so reminiscing.

"There was this one time..." Callie laughed, nearly choking on her dinner. She went on to tell the table about something that had happened when her and Ivy where children.

At last, it was time to get back to work, and this time Ivy went back with Callie. After about 5 minutes of being on the ward, an announcement came over the intercom.

"ALL BODIES AND PERSONNEL ARE TO REMAIN IN THE ORTHOPAEDIC WARD. NO-ONE IS AUTHORISED TO LEAVE OR ENTER UNTIL FURTHER NOTICE" boomed the intercom.

"ALL PERSONNEL TO REPORT TO THE STAFF ROOM IMMEDIATELY" it added.

Ivy walked hurriedly to the staff room. She opened the door and there were some young doctors already there, waiting for the meeting. A young sour faced female doctor spoke to me in an awful tone.

"Excuse me. What are you doing in here?" She said.

"My sister works here" Ivy says in a superior tone.

"Watch your attitude and get out..." the young doctor says. At this moment, a huddle of staff enter the room and one of them is Callie. Ivy runs up and quickly hugs Callie. Ivy whispers something in her ear, and Callie winks over at the young doctor who is stood there looking extremely sheepish. It looks like everyone from the ward is in the room when a police officer enters the room with the boss in charge of Seattle Grace. Silence descends on the room. Ivy moves herself as close as she can get to Callie, and Callie wraps her arm around her, keeping her close. The police woman and the boss stand on the table in the middle of the room, and begin to talk.

"A man has been stabbed in the entrance of Seattle Grace, by a group of 4 men dressed in black track suits with balaclavas and they are armed with knives and guns. They then split up and stormed the hospital. So far 2 more people have been attacked. Each unit is being shut down internally and other are going to be police positioned outside each unit. If anyone hears or sees anything suspicious we urge you to alert someone soon as possible, please stay in the unit and if you have to leave, do not go on your own." The police woman said, almost monotone.

The staff of the orthopaedic unit got back to work with a sense of urgency. They were trying not to alarm the patients but it was becoming increasingly difficult not to.

Meanwhile up in paeds, Dr Robbins had just had the same talk of another member of the police force.