“The butler, for instance.”

“No, not the butler.”

“And you are sure that she was there? You saw her?”

“No, no; don’t jump at conclusions. I didn’t see her—​myself.”

“Then who did?”

“That I must not tell you. It would be unwise.”

“I have promised to respect your confidence.”

“Quite so, or I should not have told you what I have. But names, you know, are sacred things. If I mentioned names it would be impossible for me afterwards to swear I had not done so, should an occasion for taking the oath, by some unforeseen chance, arise.”

“I see your point. Well, can you, without committing yourself, hint to me the reason you believe the lady, whose identity you have practically revealed to me, ransacked Mrs. Mervyn-Robertson’s safe? Was it, should you say, for the intrinsic value of the things stolen, or was there some deeper reason?”

“Such as?”