"We are approaching what is called the Serapeum," said the captain.

"What! more of them here? I thought we had used up all the Serapeums," said the magnate with a laugh.

"The present one is of a different sort," answered the commander. "But the ruins found in this vicinity were supposed to belong to a Serapeum such as several we have seen on the Nile; but Lepsius says they could not have been a part of a temple to Serapis, but were monuments built on the ancient canal by Darius.

"It is high ground here, comparatively speaking; and you observe that the cutting of the water-way is through a rocky formation, with rather high banks on each side. There is quite a little village above; and, as it is getting dark, we shall pass the night here in the siding-basin."

"Who is that man on the forecastle of the Maud?" asked Captain Scott as the little steamer came into the basin.

"I don't know," replied Captain Ringgold. "I had not noticed him before. He looks like an Arab, though he is taller than most of them."

A flight of steps ascended to the top of the embankment at the station of the little town. The Maud passed close to them on her way to her berth for the night. Abreast of them the Arab on the forecastle leaped ashore, but made a gesture as though the movement had given him pain. He went up the steps and disappeared.

"Who was that man, Knott?" asked the captain when the seaman came on board of the ship.

"I don't know, sir; I called upon him to give an account of himself as we were crossing Lake Timsah; but he could not understand me, pointed to his mouth, and shook his head, meaning that he could not speak English. He did not do any harm, so I let him alone; for Don was running the engine, and I did not like to call him from his duty. He kept his face covered up with a sort of veil, and would not say anything. I thought I would let him alone till we came to a stopping-place, and I could report to you."

"When did he go on board of the Maud?" asked the captain.