“It is singular that on this particular night he should have been up. Now, I should be very glad if you would have the kindness to show us over the house, Mr. Cunningham.”

A stone-flagged passage, with the kitchens branching away from it, led by a wooden staircase directly to the first floor of the house. It came out upon the landing opposite to a second more ornamental stair which came up from the front hall. Out of this landing opened the drawing-room and several bedrooms, including those of Mr. Cunningham and his son. Holmes walked slowly, taking keen note of the architecture of the house. I could tell from his expression that he was on a hot scent, and yet I could not in the least imagine in what direction his inferences were leading him.