The man hesitated no longer. He mounted the bridge, and walked with slow, firm step towards his mistress. An upward shower of shots pelted all around him. One struck him in the leg; he stumbled, nearly wrenching the planks from Jack’s grasp, and Juanita uttered a cry as the poor man fell headlong into the street. [Illustration: Francisco Falls from the Plank] Jack saw that there was no time to be lost. A few dexterous shots from below might destroy the bridge. He must run the gauntlet. He mounted at his end. At the same moment Juanita, with great presence of mind, seized the other end, and held it firmly against the parapet. Three bounds, amid flying shots, and Jack reached the parapet in safety. Then, catching up the planks, he hurled them down upon the crowd. "You are not hurt, Señorita?" he said. "Poor Francisco!" was her reply. There was a tremor in her voice, not from fear, as her next words showed. "I am ready, Señor; tell me what we are to do now." There was a trap-door a yard away, opening inwards. Jack tried this with his foot; it was bolted, but the bolt rattled, and could evidently be forced with little exertion. Without hesitating he sprang heavily on to the wood; it gave and fell in with a crash. Jack’s body had almost disappeared into the opening, when as he fell he caught the ledge with both hands, and though the sudden stoppage gave his muscles a severe wrench, he managed to maintain his grip, and hung on with legs dangling. "Señorita," he said, "come and look down and tell me what the drop is. I cannot see, myself." Juanita went down on hands and knees, and peered into the darkness. For a moment her eyes could discern nothing; then, as they became accustomed to the obscurity, she said that the trap-door opened into an attic room, and that the floor was not far below. Jack instantly let go, and dropped. The distance was but ten feet. Regaining an erect posture, he found, after a little groping, a short ladder in a corner of the attic. He placed this in the opening, and went up into the light again. It was the work of only a few minutes to carry the old lady down the ladder. Juanita followed, and instantly busied herself with her half-fainting aunt. "Wait here, Señorita," said Jack, "while I go down into the house and see if the way is open for escape."