Jekyll and Hyde

I hear thunder from the mountain Trying to split my personality I see burning on the hillside Darkness till the break of day The wind that blows A Dog that bites Recurring dreams Another night Underground through the marshes Got to keep the hounds at bay, I know Can't move, my feet are frozen There's a pounding in my head The horn that sounds I'm through the door My body's trembling Turn on the light Is the mirror lying? I must decide If I'm Doctor Jekyll Or Mr. Hyde --- Jekyll and Hyde - GTR