Medieval macabre

I am a ghoul
For years long forgotten
Inside the dungeon
Beneath the onyx fortress
Digging up corpses
Feeding on the rotten

Medieval macabre
I am the ghoul
Lurking in the catacomb
My time to break free
One day will come
Then upon the living
I shall feast I shall devour

Damn the day when the plague came
Took my life erased my name
A cursed foul creature I've become
Dead but living forever alone