also have known enough about it to know that it contained nothing of value."
He hesitated and moved the handle of his cup.
"Now, sir," he added, "two persons remain."
The lawyer, fingering the box of cigarettes, broke it open and presented them to my uncle and Randolph. He lighted one, and over the table looked Abner in the face.
"You mean Northcote Moore and myself," he said in a firm, even voice. "Well, sir, which one was it?"
My uncle remained undisturbed.
"Sir," he said, "there was at least a pretense of consistency in the work of the one who manufactured the evidences of a burglar. There was a window open in the north wing at the end of the long, many-cornered passage that leads through Eastwood Court to the room in the south wing where the aged Duncan Moore was killed. Now some one had gone along that passage, as you pointed out to Randolph when Eastwood Court was first inspected, because there were finger-prints on the walls at the turns and angles. These finger-prints were marked in the dust on the walls of the passage on the east side, but on the west side, beginning heaviest near Duncan Moore's room, the prints were in blood.
"These marks on the wall show that the assassin did, in fact, enter by this passage and return along it. But he did not enter by the open window. The frame of this window was cemented into the case-
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