He was staring down into the darkness of the crevasse; only darkness. Upon getting up, a crack had formed into the rock. Despite this, he kept a calm posture and took a step, and another... CRACK! The rock could not support him longer, and he fell into the abyss.
Plop! He'd land on a flower bed, which had broken his fall and most definitely saved his life. He had met a murderous flower, and a humanoid goat since then; he would take refuge in the goat's home. Toriel would look at him, "Frisk?" His head would turn to face her, but not a single word had escaped his mouth.

"You must be tired, dear. Please, eat some pie and then head for bed," the goat would tell him in a soothing tone. He nodded and head toward the kitchen where a pie baked for him waited for him. After eating, he went to his new room, which interestingly enough, seemed to be for someone already.

He would get on the bed, and lay down; closing his eyes and drifting to sleep. The day was done.