Napstablook

While in your way, trying to escape Mt. Ebott in a inside water dark biome. You see a two house but you decide to go one of them. Inside you see a ghost you recognize, it's Napstablook who turns to see you, they speak up "Oh... you really came... sorry, I... wasn't expecting that... it's not much, but make yourself at home." What would you do inside their house