[wow this guy is rambly. finn follows along well enough, even if he doesn't understand it, but at least it's (mostly) from a reference standpoint more than anything else.] Walls don't keep anything out forever.

It's probably not safe to go, at least unarmed. But the scream sounded more human than monster, didn't it? We'd probably hear a giant monster too if it was there, even if no one else acknowledged it.