Eternalis Carnivale

"'Greetings and salutations everyone! I am the Harlequin Rook, emissary of the Carnivale, the eternal celebration!' - 12 introducing their cult at the Christmas Party"

Summary
The Eternalis Carnivale is one of the 12 provinces of the Land of the Fae. Its emissary to the High Court of the Fae is the Harlequin Rook, who is number 12. It lies directly north of the King's Castle.

The Carnivale is the non-existent cult that the Harlequin Rook claimed to represent before revealing their true nature to Warren and 2573.