Nothing developed during the next two days. We saw Rozaine
wandering about, day and night, searching, questioning,
investigating. The captain, also, displayed commendable activity.
He caused the vessel to be searched from stern to stern; ransacked
every stateroom under the plausible theory that the jewels might
be concealed anywhere, except in the thief's own room.

"I suppose they will find out something soon," remarked Miss Nelly
to me. "He may be a wizard, but he cannot make diamonds and
pearls become invisible."

"Certainly not," I replied, "but he should examine the lining of
our hats and vests and everything we carry with us."

Then, exhibiting my Kodak, a 9x12 with which I had been
photographing her in various poses, I added: "In an apparatus no
larger than that, a person could hide all of Lady Jerland's
jewels. He could pretend to take pictures and no one would
suspect the game."

"But I have heard it said that every thief leaves some clue behind
him."

"That may be generally true," I replied, "but there is one
exception: Arsene Lupin."

"Why?"

"Because he concentrates his thoughts not only on the theft, but