So I hummed “Hellfire” and Prince Hans came into mind. So dark!fire!Elsa singing “Hellfire” was my next plan. enjoy!

Fire!Elsa pic from here by WolfClaw900

Lyrics:
Beata Maria
You know I am a righteous queen
Of my virtue I am justly proud
Beata Maria
You know I’m so much purer than
The common, vulgar, weak, licentious crowd
Then tell me, Maria
Why I see him dancing there
Why his smold’ring eyes still scorch my soul
I feel him, I see him
The sun caught in flaming hair
Is blazing in me out of all control
Like fire
Hellfire
This fire in my skin
This burning
Desire
Is turning me to sin
It’s not my fault
I’m not to blame
It is the wicked prince
The man who sent this flame
It’s not my fault
If in His plan
He made the devil so much
Stronger than a man
Protect me, Maria
Don’t let this fire cast his spell
Don’t let his fire sear my flesh and bone
Destroy Prince Hans
And let him taste the fires of hell
Or else let him be mine and mine alone
Palace Guard:(speaking) Your majesty Your sister has escaped.
Elsa: (speaking) What?
Palace Guard:(speaking) She’s nowhere in the palace.She’s gone.
Elsa: (speaking) But how? I… Never mind. Get out, you idiot! I’ll find her! I’ll find them all if I have to burn down all of Arendelle!
(song resumes)
Hellfire
Dark fire
Now sister, it’s your turn
Choose me or
Your pyre
Be mine or you will burn
God have mercy on them
God have mercy on me
But they’ll all be mine
Or they will burn! 
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