feet broad. Guerchard threw the light from the lantern on to the back wall of it. Six feet from the floor the soot from the fire stopped abruptly, and there was a dappled patch of bricks, half of them clean and red, half of them blackened by soot, five feet broad, and four feet high.
"The opening is higher up than I thought," said Guerchard. "I must get a pair of steps."
He went to the door of the drawing-room and bade the young policeman fetch him a pair of steps. They were brought quickly. He took them from the policeman, shut the door, and locked it again. He set the steps in the fireplace and mounted them.
"Be careful," he said to the Duke, who had followed him into the fireplace, and stood at the foot of the steps. "Some of these bricks may drop inside, and they'll sting you up if they fall on your toes."
The Duke stepped back out of reach of any bricks that might fall.
Guerchard set his left hand against the wall of the chimney-piece between him and the drawing-room, and pressed hard with his right against the top of the dappled patch of bricks. At the first push, half a dozen of them fell with a hang on to the floor of the next house. The light
