By dint of staring, something vaguely striking in such an agony began to assume form and outline at his feet, as though it had been a power of glance which made the thing desired unfold. A few paces distant he perceived, at the base of the small barrier so pitilessly guarded and watched on the exterior, beneath a disordered mass of paving-stones which partly concealed it, an iron grating, placed flat and on a level with the soil. This grating, made of stout, transverse bars, was about two feet square. The frame of paving-stones which supported it had been torn up, and it was, as it were, unfastened.