They alone are sitting in a narrow, misty hall or chamber. Whatever walls there may be are obscured by the limbs of many trees and saplings, overgrown with vines and creepers, that taper together overhead.
It is cool, and not quite dark. Perhaps 'tis a moonlit night beyond the shadowy canopy above, or perhaps 'tis the faerie mist itself that casts the dim, silvery light by which these four see? Whatever, 'tis clear to them that there is a crowded passage which leads out of this cramped space...