The mob was singing. Once a guard had opened the door and bawled at them to stop that infernal racket before they all had their throats choked with dirt, but they had cursed at him so impressively that, sword or no sword, he had retreated hastily and barred the door behind him. The mob had gone on singing. The Crusaders had sung ditties of England and home and beauty, with the Saracens humming and beating time; then the Saracens had taken over with chants of Islam and Bedouin love tunes, while the Crusaders accompanied them in muted bass choruses of _hmm-hmm-hmms_. This din had effectively covered the scraping of the knife, which was chipping away the old roof at a good clip. Now a bit of sunny sky showed through. The Crusader grinned, got a firm purchase with his bare toes on Godwin's hairy shoulders, braced his left hand above his head, hooked his right into the hole, and tugged downward. A big chunk of brick fell on his upturned face. He shook his blond head and chuckled. A trickle of blood ran into his mouth. Nothing could have tasted sweeter. Gradually the hole widened, till at last it was the width of a man's body and more. Godwin, the gorilla, said in Arabic, "Enough! Now onto the roof, a dozen of you!" Swiftly they swarmed up over him as though he were a scaling ladder. Slim Arab fought silently with big-bodied Englishman for the honor of being in the vanguard. Then Godwin barked again, "Enough!" They drew back, those who had not gone up through the hole, and he flexed his knees and gave a tremendous spring. Ape's muscles and man's know-how carried him straight upward; his paws caught the rim of the hole. Some clay crumbled beneath his weight, which was more than six hundred pounds. But sufficient held to give him a moment's grace. He hurled his bullet head and huge shoulders into the gap, the clay wedged his belly in for an instant, then he had burst through and was floundering on the roof, chained legs still dangling within. El Sareuk's tough old hands took him by the wrists and hauled. He was safe. * * * * * Crouching, he led his party to the edge of the flat roof, walking with legs spread so his tight fetters would not clank. It was the landward side of the prison, facing the barracks of Mufaddal's soldiery. Before the barracks paraded two sentries. Below Godwin's gang were two more, dungeon guards, one posted at each corner. The sun was brilliant on their steel helmets as they stood silent, foreshortened by the height, unconscious of any harm.