Bucky starts to give a shake of his head, but realizes it's probably too low light to see, and says, plainly, "No." Whatever is going on in here, he can face it, even if they're not getting a real orb for this.

The snarls and hisses continue as something paces in the dark. Maybe some things. He can make our a form, and it is not small, and not the only one, though he can't see it clearly.

His body tenses, and he lowers his stance, ready for an attack.