Döblin completed work on November 1918 in the spring of 1943, but was unable to find a publisher. The only work of his that was published in German during his American exile was a private printing of 250 copies of the Nocturno episode from November 1918. Döblin was embittered by his isolation and setbacks in exile, drawing a strong distinction between his own situation and that of more successful writers less oppressed by material concerns, such as Lion Feuchtwanger and Thomas Mann. In honor of his 65th birthday, Helene Weigel organized a party on 14 August 1943 in Santa Monica. In attendance were Thomas Mann, Franz Werfel, Lion Feuchtwanger, and Bertolt Brecht, among others. Heinrich Mann gave a speech, Fritz Kortner, Peter Lorre, and Alexander Granach read aloud from Döblin's works, and he was presented with notes of congratulation and praise from Brecht, Max Horkheimer, and Alfred Polgar, among others. Compositions by Hanns Eisler were performed, and Blandine Ebinger sang Berlin chansons. Yet the festivities were dampened when Döblin gave a speech in which he mentioned his conversion to Catholicism; the religious, moral tone proved alienating, and fell on unsympathetic ears.
Döblin's 1918 comic novel has been seen, in its experimental narrative technique, its refusal to psychologize its characters, and its depictions of Berlin as modern metropolis, as a precursor to Döblin's better-known Berlin Alexanderplatz. Wadzeks Kampf mit der Dampfturbine (Wadzek's Battle with the Steam Turbine) tells the story of Wadzek, a factory owner locked in a losing battle with a more powerful competitor. His futile and increasingly delusional countermeasures culminate in the fortification and quixotic defense of his family's garden house in suburban Reinickendorf. Following the dissipation of this endeavor, he suffers a breakdown and finally flees the country, eloping aboard a steamship bound for America that is powered by the steam turbines of his victorious competitor. Döblin wrote the novel in the fall of 1914, submitting it to extensive stylistic revisions while serving as a doctor on the Western front; it was published in May 1918 by the Fischer Verlag. In its stringent refusal of a tragic tone, the book earned the praise of a young Bertolt Brecht.