Demons work to corrupt all the people of Mythic Europe. They take on attractive forms, but ultimately they seek to drag all of humanity down into damnation with them. No matter the nation, the creed, or the race, they are the true enemy. The thirteen chapters of this book cover all of the manifestations of the forces of the Evil One. The purest appearances are the infernal auras, regiones, and vis, all of which taint those who merely come into contact with them.
Almost as pure are the demons of hell. The central section discusses the nine Orders of demons, providing rules for creating your own demons, as well as examples of demons from every Order and with different motivations. Some demons seek to corrupt, others to deceive, and still others simply to destroy.
Finally, there are rules for human characters caught up in Hell's plots. Whether demons have shaped their lives since before birth, or they have foolishly bargained for infernal powers, these chapters show how to use them as foes in your saga.
Be ready to fight, with sword, spell, and faith.

God is the patron of the Jewish people, his chosen people, guiding them through history and ultimately back to the Promised Land. God is three and one, incarnate in Christ His Son, and offers salvation to all equally.
God is pure unity, with no parents or children, saving all who submit to His Will.
God is beyond human understanding, and all the above statements are true.
But the Divine Realm is not completely beyond human comprehension, and this book explains the power of God in Mythic Europe. From descriptions of each of the three great Divine religions, Judaism, Christianity, and Islam, to rules for Divinely-empowered wonder workers and angels, this book contains everything needed to include the Divine in your Ars Magica saga.

You mustn't call them by name - they are the "good neighbors," the "fair folk," the "gentry." Don't draw their attention, for those they notice are drawn into their stories, which no mortal can survive unchanged. Stay away from the edges of the dark woods, respect your superiors, and do what society expects. Or the faeries will come for you! The faeries of Mythic Europe live according to roles and stories, drawing vitality from mortals who play by the rules. Some vampiric faeries steal vitality from blood, while others draw it from the garlic placed over doors to keep them out. Some fey dragons live by devouring knights and feast on the fear they create, while others exist to be defeated, drawing vitality from the knight's victory. But afterwards, the dead dragon and the defeated vampire always take on a new role, to continue the faerie story.
What story will they make you tell?