eances with her in her own
apartment," interposed Craig. "Perhaps he can help you to recollect just
what is necessary."

"I know very well, signor. I have the duplicate bill, the bill which was
paid by that Farrington with a check from the banker Vandam. Leave it to
me."

"Then you will get the stuff together this morning and have it up to my
place this afternoon."

"Yes, Professor, yes. It is a bargain. I would do anything for Mrs.
Popper--she is a fine woman."

Late that afternoon I rejoined Craig at his laboratory. Signor Marina
had already arrived with a truck and was disposing the paraphernalia
about the laboratory. He had first laid a thick black rug. Mrs. Popper
very much affected black carpets, and I had noticed that Vandam's room
was carpeted in black, too. I suppose black conceals everything that one
oughtn't to see at a seance.

A cabinet with a black curtain, several chairs, a light deal table,
several banjos, horns, and other instruments were disposed about the
room. With a few suggestions from me we made a fair duplication of the
hangings on the walls. Kennedy was manifestly anxious to finish, and at
last it was done.

After Marina had gone, Kennedy stretched a curtain over the end of
the room farthest from the cabinet. Behind it he placed on a shelf
the apparatus composed of the pendulums and magnets. The beakers and
test-tubes were also on this shelf.

He had also arranged that the cabinet should be so situated that it was
next a hallway that ran past his laboratory.

"To-night, Jameson," he said, indicating a spot on the hall wall just
back of the cabinet, "I shall want you to bring my guests out here and
do a little spirit rapping--I'll tell you just what to do when the time
comes."

That night, when we gathered in the transformed laboratory, there were
Henry Vandam, Dr. Hanson, Inspector O'Connor, Kennedy, and myself.
At last the sound of wheels was heard, and Mrs. Popper drove up in a
hansom, accompanied by Farrington. They both inspected the room narrowly
and seemed satisfied. I had, as I have said, taken a serious dislike
to the man, and watched him closely. I did not like his air of calm
assurance.

The lights were switched off, all except one sixteen-candle-power lamp
in the farthest corner, shaded by a deep-red globe. It was just light
enough to see to read very, large print with difficulty.

Mrs. Popper began immediately with the table. Kennedy and I sat on her
right and left re