“Hum! That’s a large question. When you have one of the first brains of Europe up against you, and all the powers of darkness at his back, there are infinite possibilities. Anyhow, Friend Porlock is evidently scared out of his senses—kindly compare the writing in the note to that upon its envelope; which was done, he tells us, before this ill-omened visit. The one is clear and firm. The other hardly legible.”
“Why did he write at all? Why did he not simply drop it?”
“Because he feared I would make some inquiry after him in that case, and possibly bring trouble on him.”
“No doubt,” said I. “Of course.” I had picked up the original cipher message and was bending my brows over it. “It’s pretty maddening to think that an important secret may lie here on this slip of paper, and that it is beyond human power to penetrate it.”
Sherlock Holmes had pushed away his untasted breakfast and lit the unsavory pipe which was the companion of his deepest meditations. “I wonder!” said he, leaning back and staring at the ceiling. “Perhaps there are points which
