Revenge (Kuroshitsuji Fanfic)

**I chose to use valuable aspects of the manga series, but this is mainly based from the end of Season 2 in the anime. We will say that after all the books of the manga, the events of Season 2 took place.**
Prologue:
“Please!” I cried out, searching desperately for any escape I could find. I was in such terrible shape, bleeding out upon the white carpet. Since Ciel had left me, I was alone in the world, and now targeted by his enemies. Lights were dimming and my eyes were fluttering shut.
“I’ll take anyone now! I need someone…Please…”
I was going to give up all hope when suddenly, the room turned white. A voice came up from an invisible abyss, echoing through my ears.
“You have summoned me here. That fact will never change from the beginning to the end of all eternity.”
I gasped.
“I want to live yet I am withering as we speak.”
I was scared to all ends but I had seen this before. I knew what was happening.
“I want to take my revenge…I want to live to see the horror on their faces and watch them die a grim death.”
I heard a chuckle bellow upward. My body was covered in goosebumps and I shivered in terror.
“Do you wish to make a Faustian contract with me?” a horrifying question with such a delicately simple answer.
“…Yes…I have no doubts.”
After all they put me through; they deserved to be carefully pulled away from all who loved them. They deserved to be miserable as I was now, dying a slow painful death…all alone and far from my home.
“Are you willing to give up your soul for this revenge, Elizabeth?”
He knew my name…I suppose demons have that power.
“Don’t make me repeat myself! Just save me!”
Another laugh shook my entire existence. I was ready to give everything away to destroy those who’d left me bitter, broken, and alone.