"Some histories ignore her existence entirely," he said; and, with an evident desire to change the subject, added, "I shall return to my room to dress now. Do you dress also. We cannot afford to sleep whilst the situation of that house remains unknown to us."

Robert Cairn nodded, and his father stood up, and went out of the room.

Dawn saw the two of them peering from the balcony upon the streets of Port Said, already dotted with moving figures, for the Egyptian is an early riser.

"Have you any clue," asked the younger man, "to the direction in which this place lies?"

"Absolutely none, for the reason that I do not know where my dreaming left off, and reality commenced. Did someone really come to my window, and lead me out through another room, downstairs, and into the street, or did I wander out of my own accord and merely imagine the existence of the guide? In either event, I must have been guided in some way to a back entrance; for had I attempted to leave by the front door of the hotel in that trance-like condition, I should certainly have been detained by the bowwab. Suppose we commence, then, by inquiring if there is such another entrance?"

The hotel staff was already afoot, and their inquiries led to the discovery of an entrance communicating with the native servants' quarters. This could not be reached from the main hall, but there was a narrow staircase to the left of the lift-shaft by which it might be gained. The two stood looking out across the stone-paved courtyard upon which the door opened.

"Beyond doubt," said Dr. Cairn, "I might have come down that staircase and out by this door without arousing a soul, either by passing through my own room, or through any other on that floor."

They crossed the yard, where members of the kitchen staff were busily polishing various cooking utensils, and opened the gate. Dr. Cairn turned to one of the men near by.

"Is this gate bolted at night?" he asked, in Arabic.

The man shook his head, and seemed to be much amused by the question, revealing his white teeth as he assured him that it was not.