nets which the towel service
companies place over wash-basins in offices. He took from it a comb and
brush and wrapped them up carefully.

I looked at the hat also. There was no name in it, not even the usual
initials. What did Craig mean?

Other raids in various parts of the city proved far more successful than
the one in which we had participated and O'Hanlon quickly forgot his
chagrin in the reports that soon came piling in. As for ourselves we had
no further interest except in the disposition of this case, and Craig
decided shortly to go back to work again in the laboratory among his
test-tubes, slides, and microscopes.

"I will leave you to follow the cases against the quacks, particularly
Dr. Loeb and Miss Golder, Walter," he said. "By the way, you saw me take
that hair brush. I wish I had a collection of them. In some way you
must get me a hair brush from Dr. Goode. You'll have to take a trip out
to Norwood. And while you are there, get the brushes from Darius Moreton
and Lionel. I don't know how you'll get Goode's, but Myra will help you
with the others, I'm sure."

He turned to his work and was soon absorbed in some microscopic studies,
leaving me no chance to question him about his strange commission.

CHAPTER XXX

THE FILTERABLE VIRUS

I was surprised to run into O'Hanlon himself in the train out to
Norwood. The failure to get Dr. Loeb troubled him and he had reasoned
that if Darius Moreton took the trouble to write a letter about his
friend he might possibly know more of his whereabouts than he professed.
We discussed the case nearly the whole journey, agreeing to separate
just before we reached the station in order not to be seen together.

It took me longer to carry out Kennedy's request than I had expected. I
found Myra at home alone, very much excited.

"Someone called me up from New York this morning," she said, "and asked
whether father and Lionel were at home. I thought they were at the
factory, but when I called there, the foreman told me they hadn't been
there. And Dr. Goode is out, too--hasn't seen any of his patients today.
Oh, Mr. Jameson, what does it all mean? Where have they gone?"

I was a poor one to comfort her, for I had no idea myself. Still, I did
my best, and incidentally secured the brushes, though I must confess I
had to commit a little second-story work to get into Dr. Goode's.

It seemed heartless to leave the poor girl all alone, but I knew that
Kennedy was wai