Ivar Enger, also known as "Zephyrous", was black metal band Darkthrone's once-guitarist. He is credited as featuring on the band's first three albums; Soulside Journey, A Blaze in the Northern Sky and Under a Funeral Moon, as well as the Goatlord album; the rehearsal tapes of what was originally intended to be their second album (with later added vocals). He is said to have left due to delving into misanthropy, instead of generally leaving, as Darkthrone never had touring stress and he didn't leave prior because of the swift change from death metal to black metal, like other former member Dag Nielsen did. The band maintains that Zephyrous went into a forest and never returned. However, in a 2006 interview with the German website Voices From The Dark Side, Nocturno Culto claims he still has contact with Zephyrous and would like him to join the band as a guest on a few songs at some point.