To be sure, if a man stood there, he could easily have fired into the room and into the breast of a man sitting on the far side of the table.

Armstrong was found there.

Bull looked down to his feet as a thoughtful man will do, and there, very clearly marked against the white of the stone, he saw a dark streak--two of them, side by side.
He bent and looked at them.

Then he rubbed the places with his fingertips and examined the skin.

A stain had come away from the rock.
It was as if the rocks had been rubbed with lead or a soft iron.