great hoof sounds coming down the passage seem to show that he had the
sudden realization of what before then may have been nothing more than a
horrible suspicion. And his fear and appreciation of some tremendous
danger approaching was probably more keenly real even than mine. And then
he did the one fine, great thing!"

"And the cause?" I said. "What caused it?"

Carnacki shook his head.

"God knows," he answered, with a peculiar, sincere reverence. "If that
thing was what it seemed to be one might suggest an explanation which
would not offend one's reason, but which may be utterly wrong. Yet I have
thought, though it would take a long lecture on Thought Induction to get
you to appreciate my reasons, that Parsket had produced what I might term
a kind of 'induced haunting,' a kind of induced simulation of his mental
conceptions to his desperate thoughts and broodings. It is impossible to
make it clearer in a few words."

"But the old story!" I said. "Why may not there have been something
in _that_?"

"There may have been something in it," said Carnacki. "But I do not think
it had anything to do with this. I have not clearly thought out my
reasons, yet; but later I may be able to tell you why I think so."

"And the marriage? And the cellar--was there anything found there?"
asked Taylor.

"Yes, the marriage was performed that day in spite of the tragedy,"