Following the war, Borchert's condition continued to worsen. In 1946 one doctor told his mother he expected Borchert would not live longer than another year, but Borchert himself was never told of this prognosis. He resumed his work with the theater, and continued writing. He wrote short prose and published a collection of poems "Laterne, Nacht und Sterne" ("Lantern, Night and Stars") in December 1946. In December 1946 and/or January 1947 he wrote the play "The Man Outside" ("Draußen vor der Tür"). Even before its publication the play was performed on the radio on 13 February 1947, meeting with much acclaim. Later in 1947 Borchert entered a hepatic sanitorium in the Swiss city of Basel, where he continued with short stories and wrote his manifesto against war "" ("Then there is only one thing!") shortly before his death due to liver failure.