"He's a Chicago beef packer who offered four thousand dollars for the book a while ago; but, curiously enough, he was in town this week."
"Is he in the city now?"
"That's what I should like very much to know myself. In the meantime, send this, get the answer at your place, and bring it to me in the morning. Then we'll go up and see Mrs. Barrister."
Valeska appeared next morning with a yellow envelope. "He refuses your offer," she said.
"Good!" exclaimed the Master of Mysteries, rubbing his hands in satisfaction. "He has the Folio, then, as I suspected. Now, to work! This case already begins to offer delicate little labyrinths which are nothing short of delicious to the analytical mind. We'll lose no time getting out to Mrs. Barrister's, and I want you to use your eyes better than you did last night. I expect you to see everything that I don't. Remember to watch me, though, and be ready for instructions. Notice any signal that I may happen to give you. For instance, if I raise my eyes to the ceiling, my next look will be at what I want you to notice. If I touch anything, you're to take it and look at it carefully, and follow what I say next. If I cough, you're to create some diversion so that I shan't be noticed for a few moments."
Valeska laughed. "You'll be doing a trance next. Funny how well the bluff always works, isn't it?"
Astro frowned. "My dear," he said pompously, "there are waves of the ether,—N-rays, X-rays, actinic and ultraviolet vibrations, to which I am exceedingly susceptible. I have an inner sense and an esoteric
