After over a year spent in Italy as a representative of Marx and Engels Cafiero felt the influence of anarchism. And thanks to the friendship with Giuseppe Fanelli, he passed on to the other side of the barricade, with Bakunin and his Italian followers. In early 1872 came the first issue of the newspaper "La Campana" and Cafiero wrote for, and gave money towards the publication. In the same year he met Bakunin in Locarno (Switzerland). In the summer of 1873, with the help of Cafiero, an old project was realised: to create an international center for the revolution in Italy and the world. Cafiero, selling all his inherited lands, bought a farm in Switzerland where Bakunin could live. This center was called "La Baronata", would also be a safe shelter for revolutionaries persecuted by their respective governments. In 1875 Cafiero went to Milan and joined the editorial staff of the first socialist daily paper, "La Plebe", directed by Enrico Bignami. In April 1877, Cafiero, Malatesta, Ceccarelli, the Russian Stepniak and 30 other comrades began an insurrection in the province of Benevento. They took the village of Letino without violence and with great enthusiasm. Arms and food were expropriated and distributed amongst the people, tax money was returned and official documents destroyed. Cafiero, in dialect, explained about anarchism, freedom, justice and the new society without the State, without masters, servants, soldiers and owners. His proclamations convinced even the parish priest who called the rebel group 'the true apostles sent by the Lord'. The following day the village of Gallo was taken in a similar fashion. As they were leaving Gallo the Internationalists were surprised and surrounded by government troops and all were arrested. Held in prison for over a year before being brought to trial all the accused were eventually acquitted in August 1878. In 1878, Cafiero was living in Marseilles working as cook and docker. In October he was arrested with Malatesta, then released and expelled from France. He rested in Switzerland, meeting with Kropotkin, and with the collaboration of Élisée Reclus promoted the publications of Bakunin. In 1881 Cafiero went to London, where he remained for a long time. In March 1882 he returned to Italy, expressing the will to take part in the imminent electoral campaign.