When it became so dark that while he could take a view round, his figure could not be recognized at a short distance, Edgar, with Albert and Hal, went up to the top of the house, and the former got out of the highest of the dormer windows, and, standing on the sill, looked out. The roof was indeed so steep that it would be impossible to obtain a footing upon it. Its ridge was some twenty feet above the window. The houses were of varying heights, some being as much as thirty feet lower than others. Still it seemed to Edgar that it would not be very difficult to make their way along if they were provided with ropes. Descending, he told Sir Robert the result of their investigations.