@greenstache liked for a starter !
Another one had fallen down...
Asriel had heard the scream as they had dropped down from the large hole in the Earth above at the base of mountain. It has caused his blood to run cold as the sound echoed across the emptiness of of the world below. He had hoped this would never happen again. Why did it have to happen again??
He could have chosen to ignore the noise, leave them be after they hit the ground since the flowers would break their fall well enough. He figured maybe he could hide. The underground was big enough to conceal a small monster like him, right?
No, he was taught better than that. Not only from his parents, but from Frisk as well.
With a bit of hesitation and worry, Asriel ran toward the spot where he would find the one who fell. He had expected another child perhaps, as those were usually the ones who found there way down there. But this time he found it to be a grown male. This just made him a little more uneasy about approaching. Adults could be much more unpredictable and violent then children. He took small steps forward, watching them carefully.
“E-Excuse me...” He stammered. “Are... A-Are you okay...?”