Inn i evighetens mørke (translated as ‘Into the Darkness of Eternity’) is the first EP by Norwegianblack metal band Dimmu Borgir. It was first released as a demo in 1994, and later as an EP on December 17 in the same year, after the release of the debut album For all tid. The EP was released by Necromantic Gallery Productions on 7" vinyl limited to 1000 copies.
The EP is included in the True Kings of Norway split CD by Spinefarm Records, released in 2000. In 2003, a bootleg version on Hat Records was released, that only contained the two-part track Inn i evighetens mørke and Raabjørn speiler draugheimens skodde was not included in this release.
The track Raabjørn speiler draugheimens skodde would later be included on the band's debut album For all tid, and would also be re-recorded for Enthrone Darkness Triumphant and the Godless Savage Garden EP. As well, both parts of Inn i evighetens mørke were remastered for the re-release of For all tid in 1997.