“I never met his wife,” said Madame, rapidly.

“But it is a fact that Colonel Menendez regarded him as an enemy?”

“It is a fact-yes.”

“Ah, now we are coming to it. What was the cause of this?”

“I cannot tell you.”

“Do you mean that you don’t know?”

“I mean that I cannot tell you.”

“Oh,” said the Inspector, blankly, “I see. That’s not helping me very much, is it?”

“No, it is no help,” said Madame, twirling a ring upon her finger.

The Inspector cleared his throat again, then: