He paused and looked from one to another to guess their attitude toward the Webb ladies.

“I don’t think they know anything more about Kimball than I do,” said Elsie, slowly. “I did think Henrietta engineered the whole thing,—and I had reason to think so,—I still have,—but, not enough to make me feel sure of it.”

“I’m keen on the mystery part of it,” said Allison. “I’ve a fondness for mystery and I’d like to know just how Mr. Webb did get out of that room,—that is, if it was as securely locked as the stories made it out.”

“Oh, it was;” Elsie nodded her head, positively. “That is, if Henrietta’s story is true. And it must be, for she couldn’t make all the servants stick to a made-up tale, after all the grilling they’ve been through by the detectives and by all of us. Yes, I do believe that Hollis and Oscar,—they’re the two men servants,—broke in, just as they say they did.”

“Then it’s the mystery of the century!” young Allison exclaimed. “I’m going to take a hand at it!”

Elsie smiled with an indulgent air. “All right, Joe, go ahead. But, the very simplicity of it all is the baffling part. Door and windows fastened on the inside, and the man gone, with no trace of how he got out, where he went to, or where he is now.”

“Can you beat it?” and Allison’s round face fairly glowed with interest. “No secret passage?”

“No; everybody’s tried to find one, but there’s no unexplained space in the walls, or between partitions, or anything of the sort. Mr. Whiting is an architect, and he showed the police detective how he could see there is no chance for any secret exit. The walls are intact and solid,—oh, I don’t know how to express it, but there’s absolutely no chance of a sliding panel or secret staircase or passage.”

“Makes it still more interesting. What theories have been suggested?”

“Nothing definite, except Kimball’s mother’s idea that spirits wafted him away!”