"Why, yes, you surely will be able to see him to-night. He hasn't
stirred from the house since his wife died. He told me he
momentarily expected messages from her direct when she had got
strong enough in her new world. I believe they had some kind of a
compact to that effect. The rappings come at twelve-thirty."

"Ah, then I shall have plenty of time to run over to my
laboratory before seeing Mr. Vandam and get some apparatus I have
in mind. No, Doctor, you needn't bother to go with me. Just give
me a card of introduction. I'll see you to-morrow at ten.
Good-night--oh, by the way, don't give out any of the facts you
have told me."

"Jameson," said Craig, when we were walking rapidly over toward
the university, "this promises to be an uncommonly difficult
case."

"As I view it now," I said, "I have suspicions of everybody
concerned in it. Even the view of the Star, that it is a case of
suicide due to overwrought nerves, may explain it."

"It might even be a natural death," Craig added. "And that would
make it a greater mystery than ever--a case for psychical
research. One thing that I am going to do to-night will tell me
much, however."

At the laboratory he unlocked a glass case and took out a little
instrument which looked like two horizontal pendulums suspended
by fine wires. There was a large magnet near each pendulum, and