You are clearly one of them

For over a thousand years, they lived in secret. Hiding in the Mikaelson's shadow and planning their revenge. At every turn, they ruined the originals' plans and foiled every attempt of them settling down. But, when their acts at revenge seemed to implode, a simple act of betrayal causes one of the twins to loose everything, turning them into one of the most deadliest monsters the supernatural world has ever known.