Aben gives a surprised grunt at the thing that hits the floor in front of Teran, then the one that hits near him. He takes a few steps back, not even having the time to start saying "What the-". He gives a few stumbles and a jump as the explosions start, before falling rather ungraciously on his ass, barely rolling over and going face-down in a attempt to avoid the modified fireworks. His arms come up to his ears rather than to his weapon, completely caught off guard as the girl lands and takes off, cursing once loudly, and waiting until the explosions died down before finally rolling himself over, the movement awkward with his knee, starting to try to slide himself back to a wall, intending on helping himself up before saying "Where the hell did Ezekul go?"
Ezekul fares much better than his adoptive father, on some instinct, or maybe just out of a sudden fright from something moving like that in the extremely creepy orphanage, throwing himself away from the two bombs dropped down, scrambling up rather quickly as the girl runs past him, likely having pushed him a little bit even without her knowing. He stumbles to his feet after a moment, bolting off after her, not really sure why he does so himself actually, not even thinking to himself for one moment that this girl might be dangerous or anything like that, or that she might have just been trying to harm them even as his adoptive father takes cover from the embers of the explosion. He stops hardly a moment at the latch, throwing it open and almost diving down into the basement.
In probably either the show of the greatest stupidity, or in one of the most human moments of compassion, his first movement is right to her. A streak of concern is pretty evident on his face, and he might scare her with just how quickly he got there as he says "You're hurt!" He's kind of crouched in front of her, looking down at her ankle, before looking back up at her, a completely unsuspecting look on his face, either extremely disarming, or a easy hostage to take, depending on her first instinct. He's in no position to try and resist that, and he's only got the barest of muscle on him needed for hoisting himself up a building or tree quickly.