The Commissary went out by the way of Mrs. Harlowe's bedroom, accompanied by his secretary. After a minute had passed a key grated in the lock and the door was opened. The Commissary and his secretary returned into the room from the hall.
"Good!" said Hanaud.
He rose from this chair and looking around at the little group, now grown puzzled and anxious, he said very gravely:
"In the interest of justice I now ask that none of you shall interrupt me by either word or gesture, for I have an experiment to make."
In a complete silence he walked to the fireplace and rang the bell.
CHAPTER FOURTEEN: An Experiment and a Discovery
Gaston answered the bell.
"Will you please send Francine Rollard here," said Hanaud.
Gaston, however, stood his ground. He looked beyond Hanaud to Betty.