nothing to incriminate him。 His dangerous correspondence has
been destroyed or removed。 This is our last chance。〃
It was a small tin cash…box which stood upon the writing…desk。
Holmes pried it open with his chisel。 Several rolls of paper
were within; covered with figures and calculations; without any
note to show to what they referred。 The recurring words; 〃water
pressure〃 and 〃pressure to the square inch〃 suggested some
possible relation to a submarine。 Holmes tossed them all
impatiently aside。 There only remained an envelope with some
small newspaper slips inside it。 He shook them out on the table;
and at once I saw by his eager face that his hopes had been
raised。
〃What's this; Watson? Eh? What's this? Record of a series of
messages in the advertisements of a paper。 Daily Telegraph agony
column by the print and paper。 Right…hand top corner of a page。
No dates……but messages arrange themselves。 This must be the
first:
〃Hoped to hear sooner。 Terms agreed to。 Write fully to address
given on card。
〃Pierrot。
〃Next es:
〃Too plex for description。 Must have full report; Stuff
awaits you when goods delivered。
〃Pierrot。
〃Then es:
〃Matter presses。 Must withdraw offer unless contract pleted。
Make appointment by letter。 Will confirm by advertisement。
〃Pierrot。
〃Finally:
〃Monday night after nine。 Two taps。 Only ourselves。 Do not be
so suspicious。 Payment in hard cash when goods delivered。
〃Pierrot。
〃A fairly plete record; Watson! If we could only get at the
man at the other end!〃 He sat lost in thought; tapping his
fingers o