Some blind instinct, for he was past reasoning, must have driven him to take the river bank in the direction of the sea. For when the dawn broke, which it did with unusual suddenness, the sky turning a pale yellow and the rain almost ceasing, he found himself on the banks of the Thames off Wapping. Now a sight of the most extraordinary nature met his eyes. Where, for three months and more, there had been solid ice of such thickness that it seemed permanent as stone, and a whole gay city had been stood on its pavement, was now a race of turbulent yellow waters. The river had gained its freedom in the night. It was as if a sulphur spring (to which view many philosophers inclined) had risen from the volcanic regions beneath and burst the ice asunder with such vehemence that it swept the huge and massy fragments furiously apart. The mere look of the water was enough to turn one giddy. All was riot and confusion. The river was strewn with icebergs. Some of these were as broad as a bowling green and as high as a house; others no bigger than a man’s hat, but most fantastically twisted. Now would come down a whole convoy of ice blocks sinking everything that stood in their way.