Isaura had, as we have seen, been hitherto saved by the siege and its consequences from the fulfilment of her engagement to Gustave Rameau; and since he had quitted his father's house she had not only seen less of him, but a certain chill crept into his converse in the visits he paid to her. The compassionate feeling his illness had excited, confirmed by the unwonted gentleness of his mood, and the short-lived remorse with which he spoke of his past faults and follies, necessarily faded away in proportion as he regained that kind of febrile strength which was his normal state of health, and with it the arrogant self-assertion which was ingrained in his character. But it was now more than ever that she became aware of the antagonism between all that constituted his inner life and her own. It was not that he volunteered in her presence the express utterance of those opinions, social or religious, which he addressed to the public in the truculent journal to which, under a _nom de plume_, he was the most inflammatory contributor. Whether it was that he shrank from insulting the ears of the pure virgin whom he had wooed as wife with avowals of his disdain of marriage bonds, or perhaps from shocking yet more her womanly humanity and her religious faith by cries for the blood of anti-republican traitors and the downfall of Christian altars; or whether he yet clung, though with relapsing affection, to the hold which her promise had imposed on him, and felt that that hold would be for ever gone, and that she would recoil from his side in terror and dismay, if she once learned that the man who had implored her to be his saving angel from the comparatively mild errors of youth, had so belied his assurance, so mocked her credulity, as deliberately to enter into active warfare against all that he knew her sentiments regarded as noble and her conscience received as divine: despite the suppression of avowed doctrine on his part, the total want of sympathy between these antagonistic natures made itself felt by both--more promptly felt by Isaura. If Gustave did not frankly announce to her in that terrible time (when all that a little later broke out on the side of the Communists was more or less forcing ominous way to the lips of those who talked with confidence to each other, whether to approve or to condemn) the associates with whom he was leagued, the path to which he had committed his career--still for her instincts for genuine Art--which for its development needs the serenity of peace, which for its ideal needs dreams that soar into the Infinite--Gustave had only the scornful sneer of the man who identifies with his ambition the violent upset of all that civilisation has established in this world, and the blank negation of all that patient hope and heroic aspiration which humanity carries on into the next.