"It is understood, then! Count on me. I shall tell you all I can without breaking professional secrecy.... Shall we take a turn through the rooms, old boy?"

"If you like, my dear Bonnet."

The two men strolled through the thinning rooms, talking of what all the world might hear.

"Dear boy, I must leave you," said Fandor suddenly.... "An interview!... Till our next meeting!"

Fandor went up to a man standing in a doorway, gazing disdainfully at the couples revolving in the centre of the room.

"Will you grant me a word or two, Monsieur Havard?" asked Fandor respectfully.

The chief of police brightened.

"Four, if you like, my good Fandor, I am bored to death. I would rather submit to your indiscreet questioning than stick here in a brown study—black, I might say—with only my own thoughts for company."

"Good heavens, Chief! What is troubling you to such an extent?"

Monsieur Havard laughed.