The Shadowpact is a group of magic-based heroes who fought against the Spectre in “Day of Vengeance”. They are a sort of Justice League for the supernatural elements of the DC Universe. Some of the team members are Homo Magi. A villain group known as the Pentacle whose members mirror the Shadowpact is led bythe sorceress Strega, forms a nearly impenetrable shield of solid blood over Riverrock, Wyoming and systematically begins to kill the townspeople as a means to summon Strega's master, the Lord of Light. The Shadowpact enter the town with the help of the Phantom Stranger.
The series deals with various characters from fairy tales and folklore – referring to themselves as “Fables” – who have been forced out of their Homelands by a mysterious enemy known as the Adversary. They have traveled to our world and formed a clandestine community in New York City known as Fabletown. Fables who are unable to blend in with human society (such as monsters and anthropomorphic animals) live at “the Farm” in upstate New York.