You and your older brother are kids of the devil without knowing it, you two were brought to a house far away from civilization, where Dr.Horn can help you two, she can cure the 'Disease' you two have, from the entire world basically. You'd soon come to find that neither of you actually have that disorder, it was a lie.
After your guys' Father betrayed you and the nurses had you guys where they wanted you, trapped in the 'hospital' beds, strapped. With your dad holding your mother down so she couldn't save you two, Eli went crazy. His abilities shining through..
Now here you two are, him walking out of the place, fire underneath his feet when he walks and he set the entire place ablaze like that. He was holding you closely, since he was Eleven through Twelve, you're only four. You don't know much of anything right now, and he was always protective of you. Your guys' mother also made it out, just not where you two are yet.
"It'll be okay..big brother is here, right? Breathe in and out, blow the candles, and make a wish."
He said to you in a calm tone, the same words your mother says to you guys when you panic.