Juve made a note of Box 63, Charing Cross in his pocket-book.

"Addressed to what name or initials?"

"Simply Beltham."

"Good. There are no other documents relating to the matter?"

"No, I have nothing else," said Mr. Wooland.

The young fellow relapsed into his usual impassive silence. Juve watched him for a minute or two and then said:

"You must have heard the various rumours current in Paris three weeks ago, sir, about Lord Beltham. He was a very well-known personage in society. Suddenly he disappeared; his wife left nothing undone to give the matter the widest publicity. Were you not rather surprised when you received a letter from Lord Beltham four days ago?"

Mr. Wooland was not disconcerted by the rather embarrassing question.

"Of course I had heard of Lord Beltham's disappearance, but it was not for me to form any official opinion about it. I am a business man, sir, not a detective. Lord Beltham might have disappeared voluntarily or the reverse: I was not asked to say which. When I got his letter I simply decided to carry out the orders it contained. I should do the same again in similar circumstances."

"Are you satisfied that the order was sent by Lord Beltham?"