~~~~~~~~le time skip~~~~~~~~~
"I'm sorry that I have to do this."
Gaster, when it was his turn, turned the soul in the treetops blue. On a previous turn he had *Checked the soul. The stats were surprisingly low in hp but high in defense. So hopefully the fall to a little above the snow would not give him any damage.
Surprisingly the skeleton in the treetops turned his own soul blue as well. And with the exact same force pulled himself up away from the ground. Gaster startles at the cleverness of this soul. With his turn over the soul in the treetops starts their turn.
*insert hardest sans attack*
By the time the attack is over Gaster has collapsed and is unconscious. Sans ends the fight and jumps down to the floor of the forest. Now that he isnt shaking anymore he stands over Gaster and mutters something indecipherable. Now is when the moral conflict comes into play. He knows this Gaster has possibly 2 sons waiting for him at home. So he can't just leave him here without any protection from the cold. Well he could. But morals and crap.
So he packs down some snow and layers it with blankets.Then he rolls the unconscious body of his father onto them and lays a few more blankets on top of him.
(Don't question the blankets, it's never good to question story logic)
He then teleports away. Wonder if there's a grillbys nearby.