DISCLAIMER: I only own Casey and Andrew - everything else is probably property of Marvel
Walking slowly through Brooklyn late at night, Steve suddenly stopped at the smell of smoke and ran towards the offending scents origin. As he got closer he heard screams and quickened his pace. He eventually reached the burning building and jumped over the walls of the crumbling building and gently made his way to the sounds of whimpering.
Covering his mouth and nose with his shirt Rogers climbed the precarious stairs, from his new position he could see three things. The first was a woman no older than 35 lying limply in what Steve assumed was the bathroom, eyes open and vacant as flames began to engulf her. The next was a slightly older man in a similar position hidden in what looked like the master bedroom. The third is what nearly broke his heart. Huddled in a corner were two children, crying for their parents.
Steve quickly made his way over and gathered the pair under his arms taking them outside. Once he knew they were safe he ran back in to check the rest of the house and remove the parents bodies so they could receive a proper burial. Once he was certain the house was rid of all it's living occupants, he gathered the two recently deceased and gently laid them a safe distance from the house before going back in search of the children, he could hear that the emergency services were closer but still not at their destination.
When he turned the corner Steve stopped again, shocked for the second time that night by the pair he'd just saved. An elderly man was trying to reach the crying children but the oldest, a boy with short brown hair and loose fitting Avengers pajamas on was producing a force field around himself and his sister stopping the helpful bystander from reaching them. Meanwhile the young girl sat next to him with fairly long black hair and eyes that seemed to glow blue was wringing her hands staring blankly in front of her. As Steve made his way closer he felt the Earth shaking slightly getting worse the nearer he got to the terrified children.
"Hi kids, My name's Steve, I was wondering if you'd let me give you a hand." Steve tried optimistically, speaking loudly and clearly over the noises surrounding him. To his surprise the boy looked at him and lowered his arms allowing the shield to dissipate. The man from before stood still unsure what to do as Steve took a couple of cautious steps forward. "What're your names?"
"I'm Andrew, and this is Casey." The boy whispered slowly encompassing his sister in a hug. "Th- Thank you for saving us."
"Your welcome, can I come over and see if you're alright?" The small boy nodded in reply. "How old are you?" Steve asked as he made his way over and inspected the small children for injuries. They both appeared fine, although they were likely experiencing shock which could be just as bad as burns if left uncared for so he quickly removed his jumper and wrapped it round the kids shoulders. At this touch though Casey jumped, her eyes losing their glow and becoming normal brown eyes as the tremors stopped before she hid her face in her brother's side.
"I'm 10 and Casey's 6, say hi to Steve Case, he just saved us from the fire." Slowly the small girl uncurled herself and looked up at Steve with tear filled eyes that made Steve's heart melt.
"Hi Mr Steve, Thank you." She spoke quietly but politely before turning back to her brother.
Steve slowly sat down just in front of the pair and noticed Andrew was shivering. Without thinking he gently shifted the pair so they were tucked into him and put his arms around them speaking softly, whispering soothing words until he noticed the kids breaths even out and soft snores replacing occasional whimpers. Not wanting to disturb the pair Steve stayed still until he felt a vibrating in his pocket. Quickly and gracefully so as not to wake them he grabbed his phone and answered after noticing Tony's face staring back at him.
"Cap, where have you been, you went out for a walk hours ag-"
"Tony speak quieter, you'll wake the kids."
"Kids? What kids, what have you done Capsicle?" Tony replied, almost whispering now.
"There was a fire, I just saved them, there parents didn't make it and I don't think the emergency services noticed us, I took them off to the side so they wouldn't get hurt. I'm not sure what to do Tony, but I think they're mutants, if they get taken by social services, they won't care for them, Tony, what do I do?"
"Relax Cap, I'll deal with the police and we'll look after them until we know what to do with them. We can call Xavier tomorrow, but for now get back here Spangles."
"Alright, thanks Tony, but how are you going to stop the police investigating?"
"I'm Tony Stark and the kids have Captain America looking after them, the police wont mind."
"Alright, See ya soon." Steve turned off the phone and looked down to see two eyes staring up at him in amazement.
"You're Captain America!" The small boy exclaimed, hugging Steve closer.
"Yep, I am, but I'm in disguise, would you like to come back with me and meet the other Avengers?"
"Yep!" The boy replied nodding his head vigorously, small shivers still wracking his body but the wide smile on his face made Steve realise, he didn't want to give these kids away.
"Will your sister be alright with it."
"Uh hmm, yep." The small girl mumbled into Steve's side as he realised she'd been awake for as long as her brother - probably due to Tony's sudden loudness - but had been too tired to speak sooner.
After knowing both children would be alright with going back to the tower Steve gently positioned Andrew on his shoulders, holding him in place with one hand and lifted Casey to lie in his other arm. Once they were safe and unlikely to fall Steve walked back to the tower.
Authors note - I'm not usually very good at writing so I've tried my best - constructive criticism of writing techniques etc is much appreciated. Thank you very much for reading - more should be on the way soon