(Title in Polish - 'Niezwykly przypadek 'zniszczonego' autografu. List o tzw. rekopisie warszawskim 'Odpowiedzi na 'Psalmy przyszlosci'' Juliusza Slowackiego'). The text tells about an exceptional case of Juliusz Slowacki's manuscript, i.e. the second manuscript of the poem Answer to 'Psalms of the Future' which survived in the collection of National Library in Warsaw, though in Slowacki's writings and bibliographies issued after World War II the text is qualified as destroyed in 1944. Correcting this information is an occasion to follow the poem's first and second manuscript editorial trials and tribulations in collected editions to date.