It was a good fire, and the room was illuminated by it. Near the door I saw the gleam of an electric switch, but it was unnecessary, even if it had been safe, to turn it on. At one side of the fireplace was a heavy curtain which covered the bay window we had seen from outside. On the other side was the door which communicated with the veranda. A desk stood in the centre, with a turning-chair of shining red leather. Opposite was a large bookcase, with a marble bust of Athene on the top. In the corner, between the bookcase and the wall, there stood a tall, green safe, the firelight flashing back from the polished brass knobs upon its face. Holmes stole across and looked at it. Then he crept to the door of the bedroom, and stood with slanting head listening intently. No sound came from within. Meanwhile it had struck me that it would be wise to secure our retreat through the outer door, so I examined it. To my amazement, it was neither locked nor bolted. I touched Holmes on the arm, and he turned his masked face in that direction. I saw him start, and he was evidently as surprised as I.

“I don’t like it,” he whispered, putting his lips to my very ear. “I can’t quite make it out. Anyhow, we have no time to lose.”