Chapter XXXVIAt eleven o’clock that night the Standing house in Grange Street was in darkness. On the three upper floors blinds were down, curtains drawn, and lights switched off; in the hall a faint glimmer from the small shaded bulb which burned all night over the telephone. A man entered Grange Square by Caton Walk and proceeded at a slow and leisured pace round two sides of it until he came to the dark square house at the corner. Here he stood quite still. The railings which enclosed the plane trees, empty flower beds, and grass plots of Grange Gardens were at his back. It was a black night, and he stood where the shadows were blackest. He watched the house for ten minutes or so, then walked across the road and up the steps. Here again he stood and waited. The house was as quiet as

