So I think this would be Abyssal's theme song most likely and well... I think it's a song that defiantly describes
What Crimson Death does and she's forced to watch her murder and destroy
Anyone she can get her claws on before Abyssal can finally get control again and look at the destruction in horror

I can imagine her looking at a burning kingdom with dragons slaughter on the ground within the flames while she stands there looking at it in horror thinking "what have I done.."