Thus exhorted they stood not upon the order of their going, but went, Chichester bringing up the rear; and the latter was still in the very act of descending the ladder when six crashing explosions, occurring almost simultaneously on the parapet above, shattered the early morning stillness, the sounds being instantly followed by a great rush of wings and an outburst of startled screams that issued from the throats of the affrighted birds in the immediate neighbourhood of the castle, who, thus rudely awakened, dashed away in every direction, loudly proclaiming their terror. An answering explosion almost instantly roared out from the battery on the beach; then when half a dozen further explosions on the parapet pealed out, the little party of precipitately retreating Englishmen heard heavy thuds all round them as fragments of the burst ordnance came showering to the ground. And in between the shattering reports of bursting cannon which were now almost continuous they faintly caught the sounds of human outcry as the astounded garrison, awakened by the reports, sprang from their beds and rushed hither and thither in blind panic, each man demanding of every other an explanation of the extraordinary happenings that were taking place overhead. But long before the bravest of the Spaniards had summoned up courage enough to ascend to the parapet, and ascertain for himself the source of those terrific reports and crashing blows which were causing the castle to tremble to its very foundations, the last of the Englishmen--who happened to be Dick--had vanished over the brow of the hill and was racing down the steep slope toward the spot where the longboat had been left in hiding, urging those ahead of him to redoubled efforts, lest the Spaniards, rallying from their first surprise and panic, should sally forth and attempt to cut off the fugitives.