“ ‘Proceed immediately Cherbourg embark Anzora sailing tonight Buenos Ayres. Ultimate destination Santiago. Further instructions will await you Buenos Ayres. Do not fail. Matter is of utmost importance. Renauld.’ And there had been no previous correspondence on the matter?”

Jack Renauld shook his head.

“That is the only intimation of any kind. I knew, of course, that my father, having lived so long out there, had necessarily many interests in South America. But he had never mooted any suggestion of sending me out.”

“You have, of course, been a good deal in South America, M. Renauld?”

“I was there as a child. But I was educated in England, and spent most of my holidays in that country, so I really know far less of South America than might be supposed. You see, the war broke out when I was seventeen.”

“You served in the English Flying Corps, did you not?”

“Yes, M. le juge.”

M. Hautet nodded his head, and proceeded with his inquiries along the, by now, well-known lines. In response, Jack Renauld declared definitely that he knew nothing of any enmity his father might have incurred in the city of Santiago, or elsewhere in the South American continent, that he had noticed no change in his father’s manner of late, and that he had never heard him refer to a secret. He had regarded the mission to South America as connected with business interests.

As M. Hautet paused for a minute, the quiet voice of Giraud broke in.

“I should like to put a few questions on my own account, M. le juge.”