The
Spanish Civil War galvanised the inner circle of the group in their discussions. Kurt Schumacher demanded that action should be taken and a plan, that took advantage of Harro's position at the ministry was formed. In February 1937, Harro compiled a short information document about a sabotage enterprise planned in Barcelona by the German
Wehrmacht. The information was from "Special Staff W", an organisation established by Luftwaffe general
Helmuth Wilberg to study and analyse the tactical lessons learned by the
Legion Kondor during the Spanish Civil War. The unit also directed the German relief operations that consisted of volunteers, weapons and ammunition for General
Francisco Franco's
FET y de las JONS. The information that Schulze-Boysen collected included details about German transports, deployment of units and companies involved in the German defence. The group around Schulze-Boysen did not know how to deliver the information, but discovered that Schulze-Boysen's cousin,
Gisela von Pöllnitz, was planning to visit the
Exposition Internationale des Arts et Techniques dans la Vie Moderne that was held in Paris from 25 May to 25 November 1937. In November, Pöllnitz fulfilled her mission and placed the letter in the mailbox of the Soviet Embassy on the
Bois de Boulogne. Unfortunately the Gestapo were watching the location and she was arrested. The couple, fearing instant retribution from the Gestapo, decided to leave Berlin for several weeks. On 27 September 1937, Harro left for a treatment for
kidney stones at a sanatorium in
Bad Wildungen, while Libertas arranged a sea trip via a friend, on the cargo ship
SS Ilona Siemers (1923) that left from the Hamburg port of
St. Pauli, transporting coal to the
Black Sea. During the journey, she filled her journal on stories of her travels. She returned on Christmas Day 1937. In late 1937, Schulze-Boysen met the playwright
Günther Weisenborn who had been friends with Harro since 1932. in what was their first illegal meeting that was attended by Kuchenmeister and Schumacher. On 12 January 1938, Weisenborn was introduced to Libertas. In February 1938, the Schulze-Boysens learnt that von Pöllnitz had been arrested the month before. Their apartment at 2 Waitzstraße was searched by the Gestapo but nothing was found as the couple had spent several days feverishly clearing the place of any evidence of wrongdoing. After Harro was cleared by the Air Ministry, their plans to flee to Amsterdam, where Johannes Haas-Heye was stationed, were abandoned. As the year progressed Libertas and Weisenborn relationship blossomed and eventually consummated in an open affair. In the same month, they collaborated in writing a play
Die guten Feinde (
The Good Enemies) about the German physician
Robert Koch and his competition with
Max Pettenkofer and their search for the causes of
tuberculosis . In July 1938, von Pöllnitz was released from prison and was seriously ill with a tuberculosis infection. Libertas and
Elfriede Paul began caring for her cousin, ensuring she was able to attend a sanatorium first in Sommerfeld in the Brandenberg sands and then later in Switzerland. The Gestapo visited and searched their apartment as they were associates of von Pöllnitz. The visits along with von Pöllnitz's illness led Schulze-Boysen to suffer from a general malaise that caused her to flee to Zurich, a city she felt safe in. On 6 August 1938, she was introduced to the author
Thomas Mann and spoke about her difficulties. Mann recorded the meeting in his diary. When Libertas returned in August, she worked with Weisenborn to arrange the premier of the play at a theatre in Bremen in November 1938, that was delated but finally held on 1 March 1939 at the
Theater Bremen. At the same time, Schulze-Boysen had signed a contract with
Deutschlandsender for a production of a radio play that was broadcast on 3 March 1939. On 9 November, the couple went on a 2-day holiday together to Venice Italy, the first time the couple had been together for months, that was due to the demanding need for overtime at the Air Ministry. When the couple returned they witnessed
Kristallnacht. At the end of 1938, looking to determine her fortune, Schulze-Boysen became a client of
Anna Krauss, a well-known
clairvoyant and fortune-teller. Through Krauss, Libertas met Toni Graudenz, a neighbour and they became friends. Her husband was
John Graudenz. Schulze-Boysen introduced both Krauss and Graudenz into the resistance group. In April 1939, the couple moved into their new apartment at Altenburger Allee 19 in
Charlottenburg, now the
Westend. In the summer of 1939, Schulze-Boysen visited the town of
Nidden on the
Curonian Spit. While there, she photographed a ship laden with Jewish passengers desperate to reach
Latvia. She was immediately arrested, but refused to say anything and was permitted to leave.
Schulze-Boysen/Harnack group In September 1939, the Schulze-Boysens met the writer and playwright
Adam Kuckhoff and his wife, the socialist
Greta Kuckhoff at a dinner party hosted by the film producer
Herbert Engelsing and his wife Ingeborg at their house in Bettinstraße in Grunewald. The free exchange of ideas and opinion was expected. Herbert Engelsing was planning to produce a film on Adam's book, "Der Deutsche von Bayencourt (The German from Bayencourt) that had been published in 1937 and became prominent. The party at the Engelsings, who were close friends of the Schulze-Boysens, was the ideal way to gauge the political stance of the Kuckhoff's. The Kuckhoffs were impressed by the Schulze-Boysens and shared the same political views. Libertas and Greta Kuckhoff became close friends. In 1939, Kuckhoff's decided that their close friends, the
literary historian, translator
Mildred and
Marxist economist Arvid Harnack should be introduced to the Schulze-Boysens. Greta decided that it would be the women who should meet first and in late 1939, brought Mildred and Libertas together while on holiday in Saxony. The Harnak's also held group meetings with a preplanned agenda, where they debated the political and economic perspectives of the time but were considered rather austere compared to Libertas and Schulze-Boysen's fun filled nights of music and dancing.The initial meeting of the women gave rise to a licentious image of the group that persisted for decades after the war, based primarily on Gestapo and Abwehr reports. In his 1967 book, ''L'orchestre rouge'',
Gilles Perrault states that Mildred and Libertas were lesbians, quoted from an unnamed source. However, industrialist Hugo Buschmann, who was an informant and couples close friend, stated that the group lived dangerously, but there was no evidence for Perrault's conclusion Certainly Libertas and Mildred were good friends. Other friends who joined their parties and who became staunch anti-Nazis, included the actor
Werner Dissel who they met in 1935 as well as
Albrecht Haushofer,
Kurt Schumacher and his wife
Elisabeth Schumacher,
Elfriede Paul,
Walter Küchenmeister, the writer Günther Weisenborn, the dancer and sculptor Oda Schottmüller as well as the actor
Marta Husemann and her husband,
Walter Husemann who was an editor. In the same month, Schulze-Boysen was informed that her cousin, Gisela von Pöllnitz, had died on 14 September 1939 in a Swiss sanatorium. In the following month, Harro fell ill with
Kidney stone disease. The couple spent their Christmas in 1939 apart. The stress of the war, combined with Harro's illness, the start of
rationing and the double life they led, lead to what Shulze-Boysen considered the most desolate period in her life. At the beginning of 1940, the
blackout led to the group meeting less often due to the difficulty of walking home in the darkness. Schulze-Boysen arranged to drive their friends home for her apartment, although it involved a considerable risk to herself of being followed. In early 1940, the group was joined by
Heinrich Scheel along with Hans and
Ina Lautenschläger.
Elfriede Paul stated that in early 1940, they discussed the opening of concentration camps in Poland and the military supply organisation known as
Organisation Todt. In the spring of 1940, Harro began to study foreign policy at the newly opened Institute of International Studies, part of the
Deutsche Hochschule für Politik of the
Humboldt University of Berlin for a doctorate, in an attempt to attain the position of
Regierungsrat or government councillor. ==Writer and journalist==