I then remarked that you came from Afghanistan, and you were astonished." "It is simple enough as you explain it," I said, smiling.

"You remind me of Edgar Allen Poe's Dupin.

I had no idea that such individuals did exist outside of stories." Sherlock Holmes rose and lit his pipe.

"No doubt you think that you are complimenting me in comparing me to Dupin," he observed.

"Now, in my opinion, Dupin was a very inferior fellow.