As I crossed the bridge, the sound of "Ulla, ulla, ulla, ulla," ceased. It was, as it were, cut off. The silence came like a thunderclap. The dusky houses about me stood faint and tall and dim; the trees towards the park were growing black. All about me the red weed clambered among the ruins, writhing to get above me in the dimness. Night, the mother of fear and mystery, was coming upon me. But while that voice sounded the solitude, the desolation, had been endurable; by virtue of it London had still seemed alive, and the sense of life about me had upheld me. Then suddenly a change, the passing of something--I knew not what--and then a stillness that could be felt. Nothing but this gaunt quiet.