Towards the end of the decade the Finnish school of ultra-doom (Thergothon, Skepticism) started proselytizing around the world. The most faithful to the gospel were perhaps New York's Rigor Sardonicus, whose glacial Apocalypsis Damnare (Paragon, 1999) relied on apocalyptic cymbals and vocals that were so guttural to the point of becoming an incomprehensible rumble. When this subgenre became more and more popular, the band returned with Principia Sardonica (Paragon, 2004) and Vallis Ex Umbra De Mortuus (Paragon Records, 2008), which now sounded routine. Risus Ex Mortus (Endless Desperation, 2006) offers re-recorded versions of early tracks.