Consisting of six chapters and a concluding note, the Second Part of this marvellous combination of two several tales relates chiefly to the fortunes of Eloise St. Irvyne, who accompanies her dying mother from the Chateau de St. Irvyne in France to Geneva, where the elder lady expires of a lingering malady, after solemnly admonishing her daughter to beware of any man she may encounter, who shall be 'a man enveloped in deceit and mystery.' Such a man Eloise has already encountered on her journey to Geneva; and she falls under his fatal influence immediately after her mother's death. Just as Wolfstein induces Megalena to become his ringless bride, Nempere prevails on Eloise de St. Irvyne to become his mistress. Growing weary of his victim's fascinations soon after he has gained possession of her body, the villain Nempere (who in due course turns out to be Ginotti, the Rosicrucian) offers Eloise St. Irvyne as a mere _fille de joie_, in payment of a gambling debt, to the dissolute but essentially honourable Chevalier Mountfort,--an Englishman of ancient lineage and noble rank. Too chivalrous to take advantage of the power he has acquired by purchase over the victim of Nempere's licentiousness and perfidy, the Chevalier Mountfort places Eloise with an adequate allowance in a picturesque cottage, under the chivalric surveillance of the exemplary Fitzeustace (an Irish gentleman), who eventually makes her his wife. Having thus provided for Eloise, the Chevalier Mountfort goes off in pursuit of Nempere, to chastise him for his villany. Eloise is left in good hands. 'He is an Irishman,' the Chevalier has remarked to Eloise of the gentleman to whose care she is consigned, 'and so _very moral_, and so averse to every species of _gaieté de coeur_ that you need be under no apprehensions. In short, he is a love-sick swain, without ever having found what he calls a congenial female.' The virtues of this Irish gentleman are regarded by Mr. Denis Florence MacCarthy as indicative that, whilst writing _St. Irvyne_ in the summer of 1810, Shelley was already disposed to regard the Irish with favour.