Sitting on the bed sat a young boy, blond curls and glasses. He looked exactly like Ethan. Cal quickly regained his composure and drew the curtains back around.

"Hi, there. My name is Dr. Knight but, you can call me Cal." Cal told the young boy.

The boy nodded slowly. Cal walked up to him and sat down beside him.

"So what's your name?" Cal asked.

"Ethan." Came the reply.

"Ah, I've got a brother called Ethan. So Ethan, can you tell me what's the matter?"

Before the kid could answer the curtains were drawn and Cal saw a boy, around 15 years old enter.

"This is my brother." Ethan replied.

"He is?" Cal said. "And what's his name?"

"Matthew. My name's Matthew." Replied Ethan's brother.

"So you were going to tell me why you're here." Cal turned back to Ethan.

"I've had difficulty breathing."

"Okay, do you have asthma?"

"He does." Matthew replied.

Cal took his stethoscope and placed the cold metal against Ethan's back and chest. His findings showed there was a small bit of wheezing in his lungs. Alright with what he found so far, Cal informed Ethan to stay in cubicles while he went to get one of his colleagues. With Zoe following him, Cal returned to cubicles. He had just drawn back the curtains when he was met with a laboured breathing sound. Zoe and Cal rushed over to the bed.

"Cal, what do we have here?" Zoe demanded as she took out her stethoscope.

"This is Ethan, aged 5 had difficulty breathing. He had a slight wheeze when I checked him." Cal replied.

"Okay, his breathing is getting worse. Let's roll him into RESUS." Zoe ordered.

They rolled the trolley into RESUS with Matthew following worriedly beside his brother.

"Matthew, you can't go in there. Let the doctors do their job." Cal said as he held the boy back.

"LET ME GO!" Matthew shouted.

"Matthew..."

Cal tried to say but, Matthew wasn't listening. He just turned and ran. Ran out of the hospital. Seeing Matthew run tugged at Cal's heart. He could see a bit of himself in him. And that made him feel guilty. It reminded him of Ethan and how when they were kids Ethan would get these asthma attacks. Cal remembered it used to scare him to death when he saw his brother turning blue and struggling to breathe. And now Matthew was feeling the same about his brother. Cal went off to look for Matthew while Zoe and the others treated Ethan. It wasn't long before he found Matthew. Matthew was sat on a bench outside the pub with a few tears rolling down his cheeks. Cal silently sat down beside him. He didn't know what to say so he just sat beside the kid. They sat in silence until Matthew was ready to speak.

"Dr. Knight?" Matthew asked. "Do you have a brother?"

"I do." Cal replied. "And please call me Cal."

"Is he older or younger?"

"Younger."

"Well, Cal, what would you do if something happened to him?"

Cal smiled fondly. He knew exactly what he would do.

"I would be there for him. I would protect him and make sure he got better."

"So would I." Matthew agreed. "I can't imagine my life without my little brother. I'm sorry I ran out. I was scared for him."

"I would be too." Cal replied. "And I too can't imagine my life without my little brother."

They sat in silence again. Cal leaned closer to Matthew.

"Would you like to hear a story?" Cal offered.

"Mmhm."

"Well, when we were kids, me and my brother, Ethan..."

"Ethan? Your brother's called Ethan too?" Matthew inquired as he interrupted Cal's story.

Cal nodded.

"Yeah, he's called Ethan too. Anyway when we were kids we used to always go to the park. Well one day I told him it was time to go home, I told Ethan that it would be a good idea to race back. I told him that if he one he could come with me to a football match on Saturday. He nodded eagerly so off we ran. It wasn't too long until I realised Ethan wasn't beside me. So I turned around. I've never been so scared in my life. I saw my brother was collapsed on the floor, his lips turning blue and he was having difficulty breathing. I was like you were with your brother. I wanted to help but, I was scared. I didn't know what to do..."

"What did you do?"

"I remembered that I was his big brother. I remembered it was my duty to look after him. So I ran over to him and told him to stay calm."

"What happened next?"

"Well, the ambulance came and we drove to the hospital. Our mother soon arrived and when she was told I was the one who made the call and was the one who stayed with my brother, she told me how proud she was. She told me I was a great brother and said I must always promise that whatever happens I would always be there for Ethan. She told me that I must always remember to be his big brother. And that was the one promise I've always kept"

Silence.

"Until now." Cal added in a whisper hoping Matthew hadn't heard him. But, he had.

"What do you mean?" Matthew asked.

"Nothing for you to worry about. But, what I'm telling you is that you should always remember you're a big brother. You're a big brother who is needed by his little brother. I know you're scared, I would be too but, so is your brother. He's scared and he needs his big brother."

Cal gasped as he felt Matthew fling his arms around his waist. He smiled and hugged him back.

"Thanks, Cal." Matthew smiled. He then got up and went back into the ED to be with his brother.