safe in Switzerland, Engels began to write down all his memories of the recent military campaign against the Prussians. This writing eventually became the article published under the name "The Campaign for the German Imperial Constitution". Back in Britain To help Marx with Neue Rheinische Zeitung Politisch-ökonomische Revue, the new publishing effort in London, Engels sought ways to escape the continent and travel to London. On 5 October 1849, Engels arrived in the Italian port city of Genoa. There, Engels booked passage on the English schooner, Cornish Diamond under the command of a Captain Stevens. The voyage across the western Mediterranean, around the Iberian Peninsula by sailing schooner took about five weeks. Finally, the Cornish Diamond sailed up the River Thames to London on 10 November 1849 with Engels on board. Upon his return to Britain, Engels re-entered the Manchester company in which his father held shares to support Marx financially as he worked on Das Kapital. Unlike his first period in England (1843), Engels was now under police surveillance. He had "official" homes and "unofficial homes" all over Salford, Weaste and other inner-city Manchester districts where he lived with Mary Burns under false names to confuse the police. Little more is known, as Engels destroyed over 1,500 letters between himself and Marx after the latter's death so as to conceal the details of their secretive lifestyle. Despite his work at the mill, Engels found time to write a book on Martin Luther, the Protestant Reformation and the 1525 revolutionary war of the peasants, entitled The Peasant War in Germany. He also wrote a number of newspaper articles including "The Campaign for the German Imperial Constitution" which he finished in February 1850 and "On the Slogan of the Abolition of the State and the German 'Friends of Anarchy'" written in October 1850. In April 1851, he wrote the pamphlet "Conditions and Prospects of a War of the Holy Alliance against France". Marx and Engels denounced Louis Bonaparte when he carried out a coup against the French government and made himself president for life on 2 December 1851. In condemning this action, Engels wrote to Marx on 3 December 1851, characterising the coup as "comical" and referred to it as occurring on "the 18th Brumaire", the date of Napoleon I's coup of 1799 according to the French Republican Calendar. Marx was later to incorporate this comically ironic characterisation of Louis Bonaparte's