No man could say whether he was young or aged; and the mother who had borne him a little babe at her bosom, and had watched him grow to boyhood, could not have recognised him, for he had been burnt black by the sun and the frost, and the weather had bleached his hair and beard till they looked like lichens on an ancient forest-tree, and the crown of thorns had scarred his brow, and the links of the chain had galled his neck and shoulders.