After being evacuated from Spain to England, however, Campbell angrily rejected the efforts of Percy Wyndham Lewis, Sir Oswald Mosley, and William Joyce to recruit him into the British Union of Fascists, saying that he considered Fascism to be merely another form of Communism. Campbell then returned to Spain, where he travelled as a war correspondent alongside Franco's forces. In the process, Campbell was able to retrieve the personal papers of Saint John of the Cross, which he had hidden in his family's former flat in Republican-occupied Toledo and thus preserved for future scholars to examine.