The story of King Arthur's half-sister. She was a sorceress, and was privy
To the secrets of Black Magic. It was because of her that Arthur found out
About the relationship between Lancelot and Guinevere. She set Mordred
Against Arthur and played a key role in Arthur's life.

My ruby eyes can see
All secrets and stories never told
With shadows I dance
Sombre castle, Soul aglow
I have the power
I have the might
Morgane le Fay
[ Lyrics from: http://www.lyricsfreak.com/g/grave+digger/morgane+le+fay_20262643.html ]
When I felt my father death
The Dragon put my mother in disgrace
Down by the fireplace
Sowed seed of my evil ways

Don't mess with me
Do not cross my way
Or you may play a part
In my malicious game

I am the devil in disguise
I bring thr evil to your life
Listen, listen - listen what I say
My name is - Morgane le Fay

I spoil all happiness
I reveal unvarnished truth
Call me the Black Nun
I am invincible, I never lose