seized power, suppressing Der Funke shortly afterwards, and Meisel began getting active with the German Resistance, briefly moving to Cologne to help smuggle individuals associated with the labour movement and money out of Germany and into safety in the Netherlands, Belgium and Switzerland, as well as smuggling banned literature into the country. She then returned to Berlin, where she established underground socialist propaganda networks and organised efforts to oppose the 1934 referendum on elevating Hitler from Chancellor to Fuhrer. In 1934, she interrupted her art studies and began taking courses in national economy at the London School of Economics. She also began publishing numerous articles on economics. Meisel became active with the ISK established friendships with political contacts in different countries. She lived in Paris for a time, from where she made regular trips back to Germany to aid underground trade union groups, before relocating back to the UK in 1936. Writing under the pseudonym "Hilda Monte", she brought like-minded comrades in Germany information. She also acted as a courier and smuggled literature into Germany and helped those under threat by the Gestapo to escape from Germany. Meisel also wrote for, and served as a member of the editorial board of, , an exile publication of the ISK, writing primarily about problems with the economy. As the situation with Litten deteriorated when he went to Dachau concentration camp in October 1937, Meisel began to work intensively to secure his release. She corresponded with other supporters and arranged to publish an article in the Manchester Guardian on 26 January 1938, "In Dachau Camp. The Tragic Case of Hans Litten". These efforts were without success; Litten committed suicide just days later on 5 February 1938. To avoid being deported, Meisel entered into a marriage of convenience with the British-German caricaturist and cartoonist John Olday in 1938. In so doing, she became a "British subject by marriage", allowing her to carry out her work in England more easily and Meisel developed a busy career as a journalist, writing articles for The Vanguard, Sozialistische Warte, Left News and Tribune. In addition she was a lecturer for the Workers' Educational Association. During this period she lived in Sleights in the North Riding of Yorkshire with Austrian artist Hannes Hammerschmidt and his wife Tess. Also at this time, she approached George Strauss, left-wing Labour MP and one of the financiers and founders of Tribune, for money