“Oh, no!” exclaimed Mrs Blackwood. “She is a dear girl,—very young, and of a simple, charming nature. She was devoted to her cousin, and had no thought of the family pearls ever being hers. Don’t for a moment think of Eleanor Varian as capable of the slightest thought of disloyalty, much less of envy or covetousness.”

“Well, I just wanted to know,” said Zizi, with her winning, confidential smile. “What about her parents? Could her mother have influenced Mr Frederick Varian’s mind against his own daughter?”

“No, indeed! Nor Doctor Varian either! Why, they’re the best and finest kind of people, all of them. Whatever the explanation of those pearls being left away from Betty, it was not due to any maneuvering on the part of Eleanor or her parents! Of that you may be sure!”

Meantime, Lawrence North and the detective were discussing architecture. They were in the library and the plans of the house were spread out before them.

“I’m interested,” North said, looking eagerly at the plans, “for I’m always fond of plans. And, too, I want to prove my contention that there’s no space unaccounted for. At first, I thought there might be a bit of spare room between this wall and this,—you see. But that jamb is merely the back of a small cupboard in the hall. Can you find any hint of false building?”

“No; I can’t,” Wise admitted, and then he unfolded his theory of a double door frame,—or, rather a hinged door frame or window frame.

“That,” said North, “must be looked for in the house, not on the plans. But I doubt it. Any such thing would be apt to show the joints after years of disuse. You see, this house hasn’t been lived in before for a long time.”

“Then I’ll have to give up the notion of a double door,” and Wise sighed. “Now, here’s another matter. I want to go out in a boat,—a good motor boat, and have a look round the sea and the cliff and observe for myself the possibilities of an expert climber entering the grounds from that side. Will you take me in your boat? I’m told you have a fine one?”

“Of course I will,” was the ready response. “When do you want to go?”

“As soon as you can make it convenient. I want to work rapidly, as things are coming to a focus, and I don’t dare delay.”