The first thing, he felt, must be to warn the doctor. But how? He could not speak till they were alone. Even if he attempted to whisper to the professor, who was close at hand, it would be observed, for he would betray himself as an impostor, and in betraying himself he would raise suspicion against his companions. Those were painful moments, and he shivered and longed for the scene to come to an end, for his utter helplessness seemed to overwhelm him, and he felt ready to ask why he had placed himself in so terrible a position. Then he uttered a faint sigh of relief, for the professor reverently approached his friend and whispered a question, to which the Hakim, who stood over his patient, watch in one hand, the fingers of the other holding the insensible man's wrist, carefully counting the pulsations, replied by a grave bend of the head. The professor drew back and whispered to his fellow-assistant to prepare to go, while for his own part he took the bottle, water, and glasses to the Hakim, and once more stood waiting, while Frank carefully folded up lint and bandage, and replaced the instruments in their cases. But the Hakim did not stir, and in the midst of the impressive silence he stood there bare-headed with the light of the lamps above falling upon the deep lines in his broad, white forehead and knit brows, carefully marking the pulsations, the three Mullahs still standing with folded arms, as motionless as statues, and their eyes nearly closed; but there was a keen flash now and then through the lids as they kept an eager watch upon everything that was going on. At last the Hakim softly lowered the wounded chiefs hand and replaced his watch, turning slightly to the professor, who took a step towards him and held out bottle and glass, when a few drops from the former were carefully measured out, a little water from the filter added, and then the clear limpid medicament was slowly and carefully trickled between the sufferer's lips till all had passed. At that moment there was a faint rustling behind a great curtain which draped an opening in the darkest part of the sombre room, and directly after a small, dark hand appeared and was waved to and fro. Frank, in his watchfulness, saw everything. It was evidently the hand of one of the women who had glided out when his party entered--in all probability that of the favourite wife. The young Emir saw it too, for he turned a questioning face to his father, who bowed his head, and the young man stepped silently across to the curtain, drew it a little aside, and stood whispering answers to the eager questions which were asked. "The women!" thought Frank, who was ready to snatch at any straw. If he could only speak to Morris he would order that they should stay and keep watch by the sufferer's side all night, and so baffle any nefarious attempt that might be made.