Kammala jumla mai zuwa: Hukumomin Nazi na Jamus sun iyakance ilimin yara na 'yan kabilar Poland zuwa shekaru hudu kawai a lokacin Nazi
mamaye Poland domin ya lalata al'adun Poland. Duk da haramcin, Dobrowolski ya shiga Ƙungiyar Koyarwa ta Asirin don ba da ilimi a ɓoye a cikin Poland da aka mamaye, a cewar masanin tarihin Auschwitz Adam Cyra. Gestapo ta gano Dobrowolski kuma ta kama shi a watan Yunin 1942. An kai shi sansanin fursuna na Auschwitz, inda aka ba shi lamba 38081. Daga baya Dobrowolski ya tuna cewa "Auschwitz ya fi gidan wuta na Dante muni". An kai shi sansanin fursuna na Gross-Rosen da kuma sansanin fursuna na Sachsenhausen, inda ya kasance fursuna har lokacin da aka sake shi a shekara ta 1945.