ool Lestrade, who thinks
himself so smart, has gone off upon the wrong track altogether. He is
after the secretary Stangerson, who had no more to do with the crime
than the babe unborn. I have no doubt that he has caught him by this
time."

The idea tickled Gregson so much that he laughed until he choked.

"And how did you get your clue?"

"Ah, I'll tell you all about it. Of course, Doctor Watson, this is
strictly between ourselves. The first difficulty which we had to contend
with was the finding of this American's antecedents. Some people would
have waited until their advertisements were answered, or until parties
came forward and volunteered information. That is not Tobias Gregson's
way of going to work. You remember the hat beside the dead man?"

"Yes," said Holmes; "by John Underwood and Sons, 129, Camberwell Road."

Gregson looked quite crest-fallen.

"I had no idea that you noticed that," he said. "Have you been there?"

"No."

"Ha!" cried Gregson, in a relieved voice; "you should never neglect a
chance, however small it may seem."

"To a great mind, nothing is little," remarked Holmes, sententiously.

"Well, I went to Underwood, and asked him if he had sold a hat of that
size and description. He looked over his books, and came on it at once.
He had sent the hat to a Mr. Drebber, residing at Charpentier's Boarding
Establishment, Torquay Terrace. Thus I got at his address."

"Smart--very smart!" murmured Sherlock Holmes.

"I next called upon Madame Charpentier," continued the detective.
"I found her very pale and distressed. Her daughter was in the room,
too--an uncommonly fine girl she is, too; she was looking red about
the eyes and her lips trembled as I spoke to her. That didn't escape
my notice. I began to smell a rat. You know the feeling, Mr. Sherlock
Holmes, when you come upon the right scent--a kind of thrill in your
nerves. 'Have you heard of the mysterious death of your late boarder Mr.
Enoch J. Drebber, of Cleveland?' I asked.

"The mother nodded. She didn't seem able to get out a word. The daughter
burst into tears. I felt more than ever that these people knew something
of the matter.

"'At what o'clock did Mr. Drebber leave your house for the train?' I
asked.

"'At eight o'clock,' she said, gulping in her throat to keep down her
agitation. 'His secretary, Mr. Stangerson, said that there were two
trains--one at 9.15 and one at 11. He was to catch the first. [14]

"'And was that the