Verdunkeln is a black metal band that was founded and is located in Germany. The band consists of Gnarl (guitars and vocals) and Ratatyske (drums), both of whom also play in Graupel. Verdunkeln's self-titled debut full-length (2005) was previously an unreleased demo called "Untergang". They released "Einblick in den Qualenfall" in 2007 and their latest record "Weder Licht noch Schatten" in 2012.