“Oh, by the way,” exclaimed Joe with a sudden recollection, “what became of your friend the Arab—the one who knows about the hidden treasure?”
“He’s at another hotel,” replied Dr. Kirshner. “I have his address on paper. We’ll go over there in the morning. He had already made reservations at this hostelry or would have put up with us.”
The remainder of that evening was spent quietly, for the explorers were tired after the long journey on the Sylvania.
Bob and Joe were up early the next morning, and after a small but satisfying breakfast they started out for a short walk. But they had scarcely covered a square when Joe, who had happened to glance back, stopped suddenly and nudged his friend.
Bob looked, and an answering expression of surprise and anger came on his face.
Walking slowly into the hotel were the two Arabs who had acted so suspiciously on the ship.