Wrzesień żagwiący (English: Scorching September) is a 1947 book of literary reportage written by the Polish historian and political journalist Melchior Wańkowicz.

Rutkowski wrote that Wańkowicz collected stories of the September Campaign "on the spot, planning to publish them in the press (...) After crossing the Romanian border, he faced a general chaos and bitterness of the lost war.

Wrzesień... is full of emotions, not always factually accurate and spiked with statistical errors, yet authentic and direct (...) Wańkowicz presents people who kept on fighting aware of hopelessness of their position.

Therefore, the description of the Battle of Westerplatte, based mainly on the account of Mayor Henryk Sucharski, diverges from historical works (...) It is a paradox that the book, written for immediate publication as an answer to German propaganda, did not accomplish its task.

Communist censorship accepted the chapters about Westerplatte and Major Dobrzański, but descriptions of Soviet invasion and fighting with the Red Army were not available for Polish readers until 1990".

Among others, in August 1946 in Italy, Wańkowicz interviewed Major Henryk Sucharski, who did not mention the fact that in the first days of the Battle of Westerplatte, he suffered a nervous breakdown, and the defence was commanded by Captain Franciszek Dąbrowski.

German propaganda took advantage of this, telling Silesians that Polish rule took away their jobs, and promising that after the return of Upper Silesia to Germany, new posts would be created.