Well done, Sir Elfstone. It's from the Album Led Zeppelin II.
Mine's a tale that can't be told, my freedom I hold dear.
How years ago in days of old, when magic filled the air.
T'was in the darkest depths of Mordor, I met a girl so fair.
But Gollum, and the evil one crept up and slipped away with her, her, her....yeah.