"Which part?"

"The first; that awful cavern—"

"And now, Lady Lashmore—you have recently been present at a spiritualistic séance."

She was past wondering at his power of inductive reasoning, and merely nodded.

"I suggest—I do not know—that the séance was held under the auspices of Mr. Antony Ferrara, ostensibly for amusement."

Another affirmative nod answered him.

"You proved to be mediumistic?"

It was admitted.

"And now, Lady Lashmore"—Dr. Cairn's face was very stern—"I will trouble you no further."

He prepared to depart; when—