By 1829, Ainsworth was neither a lawyer nor a publisher; indeed he did not have any employment at all. He longed for his youthful days in Manchester and pondered writing another novel. By the summer, he had begun to travel. It was during this time that he began to develop the idea of "Rookwood", and began searching for information on the subject. While researching for the novel in 1830, Ainsworth was living at Kensal Lodge. He worked on some theatrical pieces and spent the rest of his time working in the legal profession. He soon became friends with William Sergison, and the two travelled to Italy and Switzerland during that summer. During their travels, they visited the tomb of Percy Bysshe Shelley and John Keats, along with witnessing other notable scenes in the lives of the British Romantic poets. Sergison was also the owner of a residence in Sussex, upon which Ainsworth drew in his novel. After the two returned to London, Ainsworth began working for "Fraser's Magazine", which was launched in 1830. The group included many famous literary figures of the day, including Samuel Taylor Coleridge, Robert Southey, Thomas Carlyle, James Hogg and William Makepeace Thackeray. It was not until a visit to Chesterfield towards the end of 1831 that he was fully inspired to begin writing the novel, which he did self-confessedly "in the bygone style of Mrs Radcliffe".