I blinked. "I beg your pardon, Holmes?"
"Number 23 down," he replied. "Home of beams, giving guidance. We have the first letter, L, from number seven across, politician."
"But it makes no sense!" I expostulated.
"Indeed." His lip curled. "Why indeed should this copy of the Times contain a crossword which failed to match all other editions for that day? Why should a trained cormorant bring it to the lady's window? And who would suppress . . ." He cut himself off with an impatient gesture. "Later, Watson. We have a guest!"
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