“Of prussic acid, of which you smelt the strong odour! Yes, I know,—but it won’t go down, old chap——”

“The prussic acid won’t?” and Landon chuckled.

“Nor the tale either,” said the Professor. “It’s too true. The shawled woman filled the specifications too accurately to seem convincing.”

“You’re a nice crowd,” grumbled Mr. Bruce. “Come up here for experiences and then hoot at the first real thing that happens.”

“All your own fault,” retorted Norma. “If you hadn’t advertised your propensity for fooling us, your word would have carried weight.”

“All right, let somebody else sleep in that room, then. But not Miss Carnforth. Let one of the men try it.”

“Thank you, none for me,” said Braye. “I detest shawled women waking me up at four o’clock, to take my poison!”

“I’ll beg off, too,” said Tracy. “I wake at four every morning anyway, with those aspen boughs shivering against my windows. I’d trim them off, but that doesn’t seem like playing the game.”

“Wynne shan’t sleep there, and that settles that,” and Milly’s grasp on her husband’s coat sleeve was evidently sufficiently detaining.

“That leaves only me, of the men,” asserted the Professor. “I’m quite willing to sleep in that room. Indeed, I want to. I’ve only been waiting till I felt sure of the house, the servants and—excuse me, the members of our own party! Now, I’ve discovered that the servants’ quarters can be securely locked off, so that they cannot get in this part of the house; I’ve found that the outside doors and the windows can be fastened against all possibility of outside intrusion; and, I shall stipulate that our party shall so congregate in a few rooms, that no one can—ahem,—haunt my slumbers without some one else knowing it. I’ll ask you three young ladies to sleep in one room and allow me to lock you in. Or two adjoining rooms, to which I may hold all keys. Mr. Tracy, Mr. Bruce and Mr. Braye, I shall arrange similarly, while the Landons must also consent to be imprisoned by me. This is the only way I can make a fair test. Will you all agree?”