"Worshipers of Satan" is a novel by Helena Mniszkówna, published in 1928. The novel tells the story of two sisters who live in a country house with their widowed father and two young men. One of the sisters is drawn to occultism and worships Satan, and her best friend also becomes his worshiper. The novel highlights the issues of morality and religiousness during the period between the First and Second World Wars in Poland.