“It is as I feared,” he said. “No stones ever quarried by man could long resist such tremendous blows. In some places, you see, the stones are starred and cracked, in others the shock seems to have pulverised the spot where it struck; but, worse, still, the whole face of the wall is shaken. There are cracks between the stones, and some of these are partly bulged out and partly driven in. It may take some time before a breach is effected, but sooner or later the wall will surely be demolished.”