“I believe you’re right,” returned Dr. Kirshner. “That route is much shorter, and we’ll have less difficulty in finding our way from Wargla than from Figuig. Nearly all expeditions depart from Wargla, and there are numerous small settlements on the way to the Ahaggar Mountains. Can we get a train in the morning?”

The Arab nodded.

“There about three trains a day out,” he said. “I believe one leaves in morning, so we can get there easy.”

“Fine!” exclaimed Mr. Lewis. “Then we’ll leave now and get packed and be here for you early in the morning.”

Fekmah bowed.

“And I will make the stolen map over again from memory, as near as can,” he said.

They bade the Arab good-bye and left the hotel to get their belongings together. If they were to leave for the Sahara the next morning, a great deal of packing would have to be done.

“Don’t suppose there’s any use trying to find the thieves, is there?” asked Joe, as they approached their hotel.

Dr. Kirshner laughed unwillingly.

“They are probably halfway to the Sahara by now,” he returned, although he knew this to be an exaggeration.