Great band name, good demo. Somewhere between speed and (new wave of) heavy metal - the German sound of the time (GRAVE DIGGER and others). Released on this day in 1985.
Every night I hear thunder.
The shadow, can't you see?
So one night I will follow.
The dark side reigns in me.
The main riff always reminds me of VIXEN's "Living in Sin" from 1983 which you might also enjoy:
You can hear this demo, complete and remastered, on the 2007 reissue of BLIND GUARDIAN's first album, Battalions of Fear. Members of LUCIFER'S HERITAGE formed BLIND GUARDIAN after their second demo in 1986.