Having seen something of the Westbrooks, whilst Hogg was staying in Poland street, Shelley saw more of them when Hogg had left London. Hogg had scarcely started for North Wales, when Miss Elizabeth Westbrook called upon the future poet at his lodgings, bringing her sister with her. On the evening of the 18th of April, 1811, the day of Hogg's departure, Shelley wrote to his friend, 'Miss Westbrook has this moment called on me with her sister. It certainly was very kind of her.' Three days later (Sunday, 21st April, 1811), Shelley 'took the Sacrament' with the lady who had paid him so acceptable an attention. Another three days later (24th April, 1811), Shelley wrote to the same correspondent of the elder Miss Westbrook's kindness, charity, and goodness. In a subsequent letter, recalling words he had uttered to her discredit, he commended her for cleverness. Thinking so well of the lady, with whom he had so lately taken the Sacrament, it was natural for Shelley to think he ought to illuminate her, as well as her sister, out of the Christian religion. Resolute to kill religious intolerance by killing creed, and to slay creed by converting people to his own views, he thought he should deal heavy and crushing blows to prevalent superstition by withdrawing John Westbrook's daughters from the faith in which they had been educated. 'The fiend, the wretch,' he wrote of Christianity to Hogg on 28th April, 1811, 'shall fall! Harriett will do for one of the crushers, and the eldest, Elizabeth, with some training, will do too.'