"It is no business of mine." The President, turning to Monsieur Darzac, endeavoured to induce him to tell what he knew.
"Do you still refuse, Monsieur, to tell us how you employed your time during the attempts on the life of Mademoiselle Stangerson ?" "I cannot tell you anything, Monsieur." The President turned to Rouletabille as if appealing for an explanation.
"We must assume, Monsieur President, that Monsieur Robert Darzac's absences are closely connected with Mademoiselle Stangerson's secret, and that Monsieur Darzac feels himself in honour bound to remain silent.
It may be that Larsan, who, since his three attempts, has had everything in training to cast suspicion on Monsieur Darzac, had fixed on just those occasions for a meeting with Monsieur Darzac at a spot most compromising.

Larsan is cunning enough to have done that." The President seemed partly convinced, but still curious, he asked: "But what is this secret of Mademoiselle Stangerson ?" "That I cannot tell you," said Rouletabille.

"I think, however, you know enough now to acquit Monsieur Robert Darzac! Unless Larsan should return, and I don't think he will," he added, with a laugh.
"One question more," said the President.

"Admitting your explanation, we know that Larsan wished to turn suspicion on Monsieur Robert Darzac, but why should he throw suspicion on Daddy Jacques also ?" "There came in the professional detective, Monsieur, who proves himself an unraveller of mysteries, by annihilating the very proofs he had accumulated.

He's a very cunning man, and a similar trick had often enabled him to turn suspicion from himself.