"It's you, M. Paul, who have done good work this night," chuckled Tignol. "Eh! Eh! What a lesson for Gibelin!"
"The brute!" muttered Pougeot.
Then they turned to the commissary's report of his investigation, Coquenil listening with intense concentration, interrupting now and then with a question or to consult the rough plan drawn by Pougeot.
"Are you sure there is no exit from the banquet room and from these private rooms except by the corridor?" he asked.
"They tell me not."
"So, if the murderer went out, he must have passed Joseph?"
"Yes."
"And the only persons who passed Joseph were the woman and this American?"
"Exactly."
"Too easy!" he muttered. "Too easy!"