...Oh. Yeah. That'd make sense. Don't want to fall again, that really was tons of blood on those stairs. They'd heard of people dying falling down the stairs or getting really hurt, but they thought that was...adults exaggerating things.

They pause two steps up once Chara's off, blinking at their hands. "...Hearing?" they repeat uncertainly. Other Chara's? Their own? That second one'd be weird, though.

Everything's comparatively settled, now there's time for their eyes to zero in on the new scar. "...hoped that was a...one-time thing. Castle messing up. Not...you too. Sorry." They mean that they thought their own scar was a fluke, being the first person to actually die in the castle. Maybe it needed another try to do it right with the Chara who killed them.

...There's lots of Charas around now. It's going to get confusing if Frisk ever needs to talk about them.