"At this point Zephyrous became the next line-up casualty, leaving shortly after 'Under a Funeral Moon' and reducing Darkthrone to the two-piece band they've remained ever since."
Fenriz: "Yeah, but it wasn't like he suddenly showed up at my door one time and said, "I'm leaving." The whole band drifted apart. I think we had managed to become pretty fucked up in our lifestyle, but I think it was inevitable because of the energy we put into those two albums, 'A Blaze in the Northern Sky' and 'Under a Funeral Moon. I think it took its toll."
Nocturno: "Yeah, Zephyrous left a bit after, I think it was in 1993 or something. We had a long kind of break, really, and I guess Zephyrous and I were more busy getting drunk and trying to ruin our lives. I think one of the things that made him leave the band was his own health, really. Still, when we have to make a big choice for Darkthrone, Fenriz and I always say, 'what would Zephyrous think? What would Zephyrous do about this?' because he's a very strict guy and he doesn't even use one calorie on annoying himself about things that really don't matter."
From the 'Preparing for War' liner notes which are an interview with Fenriz, Ted, and Hammy from Peaceville.