"And now, perhaps, you'll tell us where we are going," said the Major, when they had gained a smaller street. "To the airship? Impossible. She would never dare to come here in daylight. Then where?" "To join Commander Jackson and Alec," answered Dick. "We entered the city last night in search of you both. But--hush! Lookout! Let's hurry. If that isn't the very fellow I most wanted to avoid." A figure had dived into the street immediately behind them, a figure strangely familiar. Dick eyed him suspiciously, and then recognized him with a start. For this man's head was swathed in bandages which left his face fully exposed, and that face was young, and smooth, and hairless. In fact, it was the very officer against whom he had collided on the previous night. "Had he been back to his house and there discovered Alec and the Commander? Or was he now on his way?" Dick asked himself those urgent questions, and then, spurred on by fear and dreadful foreboding hastened along the street, the Major and his friend close beside him, and the inquisitive officer in rear. Soon they turned into the street in which that house they sought was located, and for a moment the follower was out of sight. "Run!" cried Dick, and took to his heels. "Now, into this house. Alec!" he called. "Here," came back a jovial call. "And the Commander, both of us getting a bit anxious about you." "Shut the door and bolt it," commanded Dick, careless of the presence of his seniors. "Now, peep through the windows. The owner of this house was following us a moment ago. If he tries to enter, keep perfectly quiet. I'm going to see how we can manage to get out of what may prove to be a trap." If they had any doubts of that follower, these were cleared on the instant. There came the sound of steps on the cobbles, and then a heavy blow upon the door. "Open--open in the name of the Sultan!" Not one of those within answered. They stood back from the window waiting and watching. "Open!" they heard the command repeated, and then there followed a shrill whistle. "Look, men are running across from a house almost opposite," whispered Major Harvey, peering through the window. "This begins to look ugly, and I'm not so sure that we should not be better off in our prison. Listen to them, and see that fellow carrying a huge hammer." There came a crashing blow upon the door an instant later, a blow that almost shattered the lock. It was clear that within a few minutes the irate individual outside and his helpers would force an entrance. The Major turned in bewilderment to the Commander, for he could not quite understand this new situation. Then Dick burst in upon them. "Come along," he said. "Let's sling it. There's a way out at the back, and I know a place that'll shelter us. Quick! Those chaps will be in in a moment."