All being now ready, Roger went over to Harry's body, and, tenderly kissing the poor white lips, said, very softly: "Good-bye, dear lad, until we meet again. I will amply avenge thee!" Then, with his knife he cut off a lock of his friend's hair, and placed it securely in his bosom. He cast one more look round the cell, and then hauled himself up into the embrasure, and, forcing his body through the opening, seized the rope, with a fervent prayer in his heart for deliverance, and began the descent. After what seemed an eternity he felt a pair of strong arms flung round him, and he was eased to the ground. "Come along, sir," exclaimed the unknown man in a whisper; "we have no time to lose. They seem more wakeful than usual to-night, aloft there," pointing upward at the building with his thumb, "and they may find out your absence at any moment. Then we should both be lost, unless we were well clear of this accursed building. Now, speak no more, on your life, but do as I do, and follow me. If anybody accosts us, leave the answering to me. Cover your face as well as you can, and come along." He grasped Roger's hand, and together they set off through the darkness. The rope they were obliged to leave as it was, having no means of removing it. Through the little gateway--which Roger had seen this same man pass on one occasion--they went, and found themselves in another and much larger courtyard, planted with all kinds of flowering shrubs and trees. These could only be dimly seen in the darkness, but Roger judged, from their presence, that they were now going through that part of the building where the quarters of the occupants were situated. After a short time, occupied in fast walking, they came to an alleyway, or small avenue, down which they hastened, and at the end of this was a closed door of exceptionally stout and strong construction. Roger believed, seeing it closed, that their attempt at escape had met with a premature end; but no, the guide pressed a handle gently, and the door swung open, and as Roger stepped out he felt the cool salt breeze blowing on his face, and he knew that he was free at last. Free, after months of weary imprisonment, torture, and suffering; yes, free! His whole body seemed to expand to the grateful influence of the gentle sea-breeze; but his heart was very, very sad for the loss of his friend. The two fugitives plunged onward, across streets, down alleys, and up steps, until they come to a huge open square, at the rear of which an enormous building towered high. In the middle of the square was to be made out, dimly, a pile or heap of some sort, with what looked liked a short, thick pole, standing upright above it. Roger asked his guide in a whisper what it was. The man replied: