Available books:

ENG[*]: https://archive.org/details/TheFifthSeal/page/n1/mode/2up
POL[1]: https://katalog.rajska.info/631900356351/santa-ferenc/piata-pieczec?bibFilter=63
POL[2]: https://www.krakow-biblioteka.sowa.pl/index.php?KatID=0&typ=record&001=KNH%20M16048910
POL[3]: https://allegro.pl/produkt/piata-pieczec-wyd-kieszonkowe-ferenc-santa-c8d8478c-82bd-4d7c-878c-0e6de72ef805?offerId=18949057236
POL[4]: https://allegro.pl/produkt/piata-pieczec-f-santa-10163c5b-44e5-45dd-ae6f-37e4f011bd3b?offerId=13280332048
POL[5]: https://www.empik.com/piata-pieczec-wyd-kieszonkowe-w-opisie,p1759543875,ksiazka-p?offerId=234375214
POL[6]: https://www.empik.com/piata-pieczec-sebag-montefiore-santa,p1690815972,ksiazka-p?offerId=178601123
POL[7]: https://katalog.nukat.edu.pl/cgi-bin/koha/opac-detail.pl?biblionumber=213372