Here also there was nothing that could help him. But a sudden
thought, came to him, and he took up the blotting pad. This, to
his delight, was in the form of a book with a handsome embroidered
cover. It looked comparatively new and was, as Muller surmised, a
gift from Miss Roemer to her betrothed. But few of the pages had
been used, and on two of them a closely written letter had been
blotted several times, showing that there had been several sheets
of the letter. Muller held it up to the looking-glass, but the
repeated blotting had blurred the writing to such an extent that it
was impossible to decipher any but a few disconnected words, which
gave no clue. On a page further along on the blotter, however, he
saw what appeared to be the impression of an address. He held it
up to the glass and gave a whistle of delight. The words could be
plainly deciphered here:
MR. LEO PERNBURG,
"FRANKFURT AM MAIN,
"MAINZER LANDSTRASSE."
and above the name was a smear which, after a little study, could
be deciphered as the written word "Registered."
With this page of the blotter carefully tucked away in his
pocketbook, Muller hurried to the post office, arriving just at
closing hour. He made himself known at once to the postmaster, and
asked to be shown the records of registered letters sent on a
certain date. Here he found scheduled a letter addressed to Mr.
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