"You would know it again?"
"Anywhere!"
"Actually, there was no one in the room, of course?"
"No one. It was some awful illusion; but I can never forget it."
CHAPTER III
THE RING OF THOTH
Half-Moon Street was very still; midnight had sounded nearly half-an-hour; but still Robert Cairn paced up and down his father's library. He was very pale, and many times he glanced at a book which lay open upon the table. Finally he paused before it and read once again certain passages.
"In the year 1571," it recorded, "the notorious Trois Echelles was executed in the Place de Grève. He confessed before the king, Charles IX.... that he performed marvels.... Admiral de Coligny, who also was present, recollected ... the death of two gentlemen.... He added that they were found black and swollen."