Coal stares at the skulls for a moment, feeling very uneasy at the sight of them on top of being in the Everfree forest. He slowly pushes the door closed, he doesn't want to make everypony freak out anymore than they already are at the moment with the skulls outside.
He walks back towards the others and asks, "So then, what are we going to do? I just checked outside and it looks like we're somewhere within the Everfree Forset. I don't think we'll be able to stay here for long."
Coal tries to keep his usual calm face on as he speaks, but finds it hard with all that has recently happened.