Returning from Scotland to London shortly before Christmas, 1813, Shelley, after a brief stay in town, took a furnished house for two or three months at Windsor, whence he migrated in the early spring to Binfield, where he still nominally resided at the time of his withdrawal from his wife. Thus during the two years and nine months of their association in wedlock, Shelley and Harriett stayed for six weeks in (1) Edinburgh, sojourned for awhile at (2) York, tarried for three months at (3) Keswick, lived nine weeks at (4) Dublin, tarried for something over two months at (5) Nantgwillt, spent something more than nine weeks at (6) Lynton, lived for a fortnight or so at (7) Tanyrallt, came for six weeks to (8) London, returned for something like fourteen weeks to (9) Tanyrallt, made a second trip to (10) Dublin, flew off to (11) Killarney, passed a season in (12) London, tenanted a cottage in (13) Bracknell, revisited (14) the Cumberland lakes and (15) Edinburgh, inhabited a house at (16) Windsor, and dwelt in a cottage at (17) Binfield. To realize their restlessness, the reader must remember that they had two and even three successive places of abode in some of the parishes they visited. Besides hotels which they entered for bed and board in the course of their wanderings, they inhabited some nineteen different houses or sets of lodgings in thirty-three months. What a life of vagabondage! How little calculated was such a way of living to dispose the ramblers to seek enjoyment in simple domestic interests! Hogg laughs at Harriett’s ignorance of housewifely arts, and her inability even to order the wretched dinners served in her successive lodgings. No wonder that the poor child, who never had a house of her own to keep, was a simpleton at house-keeping!

In 1814 (according to Hogg, at the beginning of the year) Shelley published (in the legal, if not in the commercial sense of the term) A Refutation of Deism: In a Dialogue.

Had it been Shelley’s purpose to give a suitable title to the performance, which in style contrasts so favourably with his earlier prose writings, he would have named it ‘A Dialogue for the Fuller Demonstration of the Necessity of Atheism.’ But it was his design to give the pamphlet a title, that should throw dust in the eyes of his orthodox enemies, and cause persons to buy the book, who would not wilfully open an atheistical treatise. With the same deceptive purpose he concocted the preface, which opens with these words:—

‘The object of the following dialogue is to prove that the system of Deism is untenable. It is attempted to show that there is no alternative between Atheism and Christianity; that the evidences of the Being of a God are to be deduced from no other principles than those of Divine Revelation. The author endeavours to show how much the cause of natural and revealed religion has suffered from the mode of defence adopted by Theosophistical Christians. How far he will accomplish what he proposed to himself, in the composition of this dialogue, the world will finally determine.’

In the whole range of English literature, it would be difficult to point to a preface, containing a larger number of misstatements and false suggestions in so few words. The object of the dialogue is to prove that Christianity and Deism are alike untenable. Shelley’s aim in the dialogue is to prove that the evidences of the Being of God can be deduced neither from the principles of Deism, nor from those of the so-styled Christian Revelation, and that, after reviewing the arguments for Christianity and the arguments for Atheism, the logical reader will not hesitate to embrace the latter.

Were it not for his want of a quality so conspicuous in Byron, one would suspect Shelley of grim humour in making the arguments for Atheism proceed from a Christian’s mouth. But Eusebes, the Christian of the dialogue, is not so much a Christian as an Atheist disguised as a Christian,—the disguise being one of the mystifications employed by the author to veil his insidious purpose. Whilst the Christian of the dialogue may be described as an Atheist in disguise, Theosophus is less a Deist than a mere derider of Christianity. He urges little in favour of Deism, and that little he utters faintly, in comparison with his arguments against Christianity. For every page of the Deist’s arguments in support of Deism, the dialogue affords nearly eight pages to the direct discredit of Christianity. The mystification, that results from the author’s adroit handling of his two argumentative puppets, is even more effective than the mystification resulting from the title-page and preface. What the author, with all his boldness, would have hesitated to say in his own person, to the dishonour of the national faith, he felt he could utter with comparative safety through the lips of a Deist, who is thoroughly beaten on the deistical questions by a Christian. On the other hand, the atheistical arguments that could scarcely fail to expose him to prosecution for blasphemy, Shelley thought he could utter with impunity, or at least with smaller risk of legal chastisement, if he uttered them through the mouth of a Christian, who should be represented as offering them to his companion, merely for the sake of purging his mind of deistical trash, and driving him to embrace Christianity.

Theosophus (the derider of Christianity who affects to be a Deist) having done his best to demolish Christianity, Eusebes (the Atheist who affects to be a Christian) directs the fire of his polemical guns against the belief in a supreme Deity; and it is in this later portion of the dialogue that the reader comes upon the most important of the arguments, that are mere developments of the reasonings of The Necessity of Atheism and the Atheistical Note to Queen Mab.

It has been observed how Shelley reproduced in the Letter to Lord Ellenborough one of the prime doctrines of The Necessity of Atheism,—viz., that belief is independent, and beyond the control of volition. Hence, Shelley reproduced the reasoning of The Necessity of Atheism in three successive publications, (1) the Letter to Lord Ellenborough, (2) Queen Mab, (3) the Refutation of Deism. Yet Mr. Garnett requires us to believe that in writing The Necessity of Atheism, Shelley was merely throwing off a squib, that did not express his serious convictions.

It is needful for the present biographer to call attention to another cluster of inaccuracies in Mr. Kegan Paul’s William Godwin; his Friends and Contemporaries, wherein it is written,—

‘In 1813 Shelley was again in London for a short time during the summer, but Mary was absent in Scotland. She was not strong, and as a growing girl needed purer air than Skinner Street could offer; she had therefore gone to Dundee with her father’s friends, Mr. Baxter and his daughter; and remained with them for six months. It was not until the summer of 1814 that Shelley and Mary Godwin became really acquainted, when he found the child whom he had scarcely noticed two years before had grown into the woman of nearly seventeen summers.... Shelley came to London on May 18th, leaving his wife at Binfield, certainly without the least idea that it was to be a final separation from him, though the relations between husband and wife had for some time been increasingly unhappy. He was of course received in Godwin’s house on the old footing of close intimacy, and rapidly fell in love with Mary. Fanny Godwin was away from home visiting some of the Wollstonecrafts, or she, three years older than Mary, might have discouraged the romantic attachment which sprang up between her sister and their friend. Jane Clairmont’s influence was neither then, nor at any other time, used, or likely to be used, judiciously.