So, in 1944, Fallada was put in a Nazi prison/asylum for the criminally insane for the attempted murder of his ex-wife (classic Hans). To obtain writing materials and to survive an incarceration that was generally seen as a death sentence, Fallada told Nazi propaganda minister Josef Goebbels that he wanted to write an anti-Semitic novel. However, Fallada had no intention of doing any such thing.
What he actually wrote, under the guards' watchful eyes and in constant fear of discovery, were three encrypted books in a single notebook so densely coded that they weren't deciphered until long after his death.
"I plan ahead."
One of these books was the much acclaimed The Drinker, a dark semi-autobiographical novel depicting addiction, crime and homosexuality in a way not quite in line with Nazi literary policy. Another book was a collection of children's stories. Both books were written in tiny, condensed, almost indecipherable handwriting, but he kept the children's stories visible, to give the guards something simple and nonthreatening to see should they question what he was up to. But in between the lines of the short stories, upside down and backward from the end to the beginning, he wrote a frank, extremely anti-Nazi memoir of his life under National Socialist rule, entitled In Meinem Fremden Land.