According to Fernsehen der DDR, the German adaptation of Lem’s script finds the science-obsessed Professor Tarantoga with a strange guest who calls himself Novak (or maybe Hipperkorn) and claims to hail from fourth-millennium Mars where he quulles. part from the bit about quuelling, this certainly sounds like the 1963 Polish script that we read, but we don't know whether it was expanded or revised.