"But from the window in the attic it is possible to see only the straight part of the carriage-way. The edge of the roof cuts off the rest. How did you know that the carriage-way divided in two and made a circle up to the door?"
"I saw it!"
"How?"
"From that window."
"You want us to understand that you see on a different principle from ordinary beings? On the principle of the Irishman's gun that shoots round corners. Or is it all done by mirrors?"
"It is the way I described!"
"Certainly it is the way you described; but what you described was the view of the courtyard as seen by, let us say, someone looking over the wall at it; not by someone looking at it from the window in the attic. Which you assure us was your only view of it."
"I take it," said the Court, "that you have a witness to the extent of the view from the window."
"Two, my lord."
"One with normal vision will be sufficient," said the Court dryly.