Crouched by their dungeon door, they listened by the hour, and at last their patience was rewarded. Voices were heard, steps approached and died away, and then all was silent. The time for action had come. Melton threw himself on the straw and moaned. Guy rapped sharply on the door and waited in suspense. Almost instantly it opened, and the guard, a tall Nubian, pushed his lamp into the doorway and followed it up with head and shoulders. "Canaris, Canaris!" said Guy earnestly, pointing to Melton, who uttered at that moment a most unearthly groan. The guard drew back and shut the door. His soft tread echoed down the corridor, and all was still. The suspense of the next five minutes Guy will never forget as long as he lives. It seemed to his excited imagination as though an hour had passed by, when suddenly sounds were heard in the corridor, and in an instant more Canaris stood before them, his leather case at his side, a lamp in his hand. He closed the door, opened the case, and drew out two wide linen tunics and two long jackets such as the Emir's troops wore. "Put these on," he whispered. "You can wear your helmets; there are many of them in Harar." As he spoke he drew an Arab burnous over his head, shading entirely his light hair and mustache. He next pulled the revolvers and shells from under the straw, distributed them around, and with the knife cut the rope in a dozen parts. By this time Guy and Melton had donned their disguises and were ready for action. Up to this point Guy had supposed that Canaris had bribed the guards and paved the way out of prison. "You are sure the guards will let us pass?" he said. Canaris looked at him in wonder, and then a smile rippled over his face. "You thought I had bribed the guards," he said. "Ten thousand pounds could not tempt them. They would only lose their heads in the morning. It matters little," he added. "They will lose them anyhow. But our time has come; be ready now to assist." He motioned Guy and Melton behind the door, and then, pulling it partly open, uttered a few words in a strange tongue. Instantly the powerful frame of the big Nubian entered, and as he stood for one second on the dungeon floor, sudden mistrust in his ugly features, Canaris leaped at his throat and bore him heavily to the ground. "Quick!" he cried, and in an instant Guy and Melton had seized the struggling man's arms and feet. Still pressing the fellow's windpipe with one muscular hand, Canaris thrust a gag into the gaping mouth, and in two minutes their captive was lying bound and helpless on the straw. "What did you tell him?" asked Guy. "I said our lamp was going out," Canaris replied. "And now for the man at the prison door. I must get him inside, for the post is in plain view of the guard at the gate." A solution of this puzzling problem was closer at hand than anyone imagined. The creaking of a door was heard, followed by approaching footsteps.