A tale of the guardian angels of Paris, in which a caricatured, old-fashioned librarian is the subject of some uproarious episodes.

God, conquered, will become Satan; Satan, conquering, will become God. May the fates spare me this terrible lot; I love the Hell which formed my genius. I love the Earth where I have done some good, if it be possible to do any good in this fearful world where beings live but by rapine. Now, thanks to us, the god of old is dispossessed of his terrestrial empire, and every thinking being on this globe disdains him or knows him not.

La Revolte des Anges (1914) is often considered the author's most profound novel. It tells the story of Arcade, the guardian angel of Maurice d'Esparvieu, who falls in love, joins the revolutionary movement of angels, and towards the end realizes that the overthrow of God is meaningless.

In this book-length study of The Satanic Temple, Joseph Laycock, a scholar of new religious movements, contends that the emergence of "political Satanism" marks a significant moment in American religious history that will have a lasting impact on how Americans frame debates about religious freedom. Though the group gained attention for its strategic deployment of outrage, it claims to have developed beyond politics into a religious movement. Equal parts history and ethnography, Speak of the Devil demonstrates why religious Satanism is significant to larger conversations about the definition of religion, religious freedom, and religious tolerance.