21 Paths to the Kingdom of Darkness is a collection of essays in Finnish that largely presents the tenets of the Order of Nine Angles. The movement supports accelerationism, i.e. promoting the collapse of society through terrorism and sabotage. The movement's worldview combines theistic Satanism and far-right ideology; the movement despises the typical forms of Satanism in Western countries. The idea of the O9A, represented by the book 21 Paths to the Kingdom of Darkness, is also marginal in the circles of both esotericists and extreme right-wingers. However, the current gained somewhat more visibility in Finland around the years 2018–2024.