The words were on Frank's lips to say quickly, "Pray, pray rouse yourself, or we are lost!" but he had presence of mind enough left to press his teeth firmly together and gaze fixedly at the Baggara, whose dark eyes flashed angrily as he stamped one foot and advanced a little more, to repeat his words. Still Morris did not stir, and it was only by the most determined effort that Frank kept himself from turning sharply to dart a look of horror at Landon and Sam. But it was the thought of his brother that gave him the strength, and the next moment he breathed a sigh of relief, for the Sheikh stepped close up to the doctor, raising a hand warningly to the Baggara. "The learned Hakim," he said, "is deep in thought upon the wisdom with which he heals;" and then, bending towards the doctor's ear, he said in a low, distinct voice, in English-- "A great chief is here, O learned one. He is wounded and in pain, and asks your aid." As Ibrahim spoke the doctor slowly raised his eyelids and gazed at the speaker, turning to him the while as if ignorant of the presence of the chief and the crowd around. Then bending his head slowly as if in assent, he turned to gaze full in the Baggara's scornful eyes, his face lighting up with keen intelligence, and continuing his fixed look till the chief made an angry gesture and for a moment lowered his eyes. It was only for a moment, though, and then he looked fixedly at the doctor again, the scornful smile upon his lip growing more marked as he keenly watched all that was done. "Splendid bit of acting," said the professor to himself, as he stood with folded arms a little behind his friend's left hand, and he too drew a breath of relief as with calm dignity Morris handed his pipe to Frank, whose black face glistened as he took it with a solemn bow and handed it to Sam with a sign that he should take it into the tent, noting how the man's hand trembled, but avoiding his eyes, and turning sharply to the scene being enacted behind him. As he turned, it was to see the Hakim raise his strong, white hands to spread his great dark beard over his chest, and then sign to the chief to kneel. This was met by an angry look of resentment, and the younger chief uttered a sharp ejaculation, which was followed by a murmur behind him. It was a critical moment, but the natural superstition in the Baggara proved too strong. He yielded to the powerful gaze which completely mastered his, and went slowly down on one knee, still holding out his injured arm. As this was done the doctor threw back the sleeves of his robes, turned up his beautifully clean shirt-sleeves, and displayed his strong white arms. Then raising his hands he removed his jewelled turban and passed it to the professor, who was ready to take it in his hands, to hold it with reverent care.