The band expand on the world they began creating in Poseidonis; a curious underwater imaginarium, inspired by the American Weird Fiction movement, Clark Ashton Smith, and the titular mythotholgy of Atlantis; combined with the music of Berlin School ambience and psychedelic ambient, To this surreal mix, Hyperborea adds elements of black metal, doom, medieval and baroque flourishes and shadings to their signature sound into a new chapter of their universe, depicted through the awesome cover art from Matthew Jaffe