NEBIROS was formed in 1990 in Medellin, Colombia by Jovanni Garcia, aka Sacrilegus. Joined by drummer Black Satan and bassist/guitarist Feretrum, NEBIROS stood out among their chaotic Ultrametal peers in Colombia by playing mid-paced, occult black metal in the vein of SAMAEL, ROTTING CHRIST, and ?Deathcrush?-era MAYHEM. Their first demo is the sole recording featuring Sacrilegus before his untimely murder in 1992, although his lyrics would be used for several more years. Black Satan was soon replaced by Dominus Saevitum, and the group would remain a duo throughout the rest of its initial run. Originally self-released by the band in 1991, this hidden treasure finally gets the well deserved vinyl treatment.