He suddenly rose from his chair with his finger to his lips, and his eyes opened wide. Never was a man so mysterious, so important in his mystery. He stole on tiptoe, with a lightness of step amazing in so bulky a man, to the door. Noiselessly and very slowly, with an alert, bright eye cocked at Frobisher like a bird's, he turned the handle. Then he jerked the door swiftly inwards towards him. It was the classic detection of the eavesdropper, seen in a hundred comedies and farces; and carried out with so excellent a mimicry that Jim, even in this office of the Sûrété, almost expected to see a flustered chambermaid sprawl heavily forward on her knees. He saw nothing, however, but a grimy corridor lit with artificial light in which men were patiently waiting. Hanaud closed the door again, with an air of intense relief.

"The Prime Minister has not overheard us. We are safe," he hissed, and he crept back to Frobisher's side. He stooped and whispered in the ear of that bewildered man:

"I can tell you about those dossiers. They are for nine-tenths the gossip of the concièrge translated into the language of a policeman who thinks that everybody had better be in prison. Thus, the concièrge says: This Mr. Frobisher—on Tuesday he came home at one in the morning and on Thursday at three in fancy dress; and in the policeman's report it becomes, 'Mr. Frobisher is of a loose and excessive life.' And that goes into your dossier—yes, my friend, just so! But here in the Sûrété—never breathe a word of it, or you ruin me!—here we are like your Miss Betty Harlowe, 'we snap us the fingers at those dossiers.'"

Jim Frobisher's mind was of the deliberate order. To change from one mood to another required a progression of ideas. He hardly knew for the moment whether he was upon his head or his heels. A minute ago Hanaud had been the grave agent of Justice; without a hint he had leaped to buffoonery, and with a huge enjoyment. He had become half urchin, half clown. Jim could almost hear the bells of his cap still tinkling. He simply stared, and Hanaud with a rueful smile resumed his seat.

"If we work together at Dijon, Monsieur Frobisher," he said with whimsical regret, "I shall not enjoy myself as I did with my dear little friend Mr. Ricardo at Aix. No, indeed! Had I made this little pantomime for him, he would have sat with the eyes popping out of his head. He would have whispered, 'The Prime Minister comes in the morning to spy outside your door—oh!' and he would have been thrilled to the marrow of his bones. But you—you look at me all cold and stony, and you say to yourself, 'This Hanaud, he is a comic!'"

"No," said Jim earnestly, and Hanaud interrupted the protest with a laugh.

"It does not matter."

"I am glad," said Jim. "For you just now said something which I am very anxious you should not withdraw. You held me out a hope that we should work together." Hanaud leaned forward with his elbows on his desk.

"Listen," he said genially. "You have been frank and loyal with me. So I relieve your mind. This Waberski affair—the Prefect at Dijon does not take it very seriously; neither do I here. It is, of course, a charge of murder, and that has to be examined with care."

"Of course."