is the debut album by Czech black metal band Master's Hammer, initially released through independent label Monitor in 1991.

The track "Jáma pekel" would eventually be re-recorded for Master's Hammer's 2009 album Mantras.

Polish blackened death metal band Behemoth covered "Jáma pekel" on their 2008 EP Ezkaton.

Their version counted with a guest appearance by Root vocalist Jiří "Big Boss" Valter.

[3] It is considered to be one of the major albums responsible for defining the early Czech black metal scene of the late 1980s/early to mid-1990s, alongside Root's Zjevení (1990) and Maniac Butcher's Barbarians (1995).