In 1798 she moved to Bristol, and in 1801 began to publish books of prophecies and warnings, which were eagerly purchased by her followers. In 1802 she moved to London, where she was patronized by Sharp, the engraver, and had other influential friends, Brothers, the fanatic, who had proclaimed himself the promised Messiah, and a certain Miss Cott, whom he admitted to be the daughter of King David and the future Queen of the Hebrews. But Richard Brothers was sent to Bridewell, and those who had believed in him, amongst others an M.P., Mr. Halhead, member for Lymington, were drifting about in quest of some new delusion. Joanna suited them to a nicety, and they rallied about her. The books which she sent forth into the world were written partly in prose, partly in rhyme, all the prose and most of the rhyme being given forth as the direct words of the Almighty. It is not possible to conceive that any persons could have been deluded by such rambling nonsense, did one not know that human folly is like the Well of Zemzem that is inexhaustible. Joanna’s handwriting was illegibly bad; so that at last she found it advisable to pretend that she had received orders from heaven to discard the pen, and deliver her oracles verbally, and the words flowed from her faster than the scribes could write them down. Her prophecies were words, and words only, a rhapsody of texts and vulgar applications; the verse the vilest doggerel ever written, and the rhyme and grammar equally bad. She made a pretty penny, not only by the sale of her books, but also by her “Certificates for the Millennium,” and her “Sealings of the Faithful,” passports to paradise. Of these she sold between six and seven thousand, some at twelve shillings, but most at a guinea; and she continued the sale until a woman, Mary Bateman, a Leeds murderess, who had poisoned a Mrs. Perigo, and had attempted to poison Mr. Perigo, was hanged in 1809, and it was ascertained that this poisoner had been furnished by Joanna with one of her passports to paradise.