The band’s music is often described as
occult rock or dark rock, drawing heavily on 1960s–70s hard rock and proto-metal influences. Critics have compared them to
Blue Öyster Cult,
Black Sabbath,
Ghost, and
The Devil's Blood. Their lyrics frequently reference mysticism, esotericism, and occult themes.
The Unspeakable is centered around the works of
H.P. Lovecraft.
Novis Orbis Terrarum Ordinis is structured conceptually around the
seven deadly sins., == Band members ==