The Soul Mark Series by Cara E. Holt

Torn away from those she loves Ebony is forced to accompany Lucifer into the underworld and take her place beside his son. Ebony must learn to fight the darkness that is inside her and fight against Lucifers attempts to turn her dark. Separated from her mate Ebony finds herself seeking the company of her dark demon. With the threat of Devlon attempting to awaken the cauldron she must do what she can from her place in the underworld to learn how to use and control her powers... moreTorn away from those she loves Ebony is forced to accompany Lucifer into the underworld and take her place beside his son. Ebony must learn to fight the darkness that is inside her and fight against Lucifers attempts to turn her dark. Separated from her mate Ebony finds herself seeking the company of her dark demon. With the threat of Devlon attempting to awaken the cauldron she must do what she can from her place in the underworld to learn how to use and control her powers. Fate has come to call upon Ebony but is she ready to accept who she truly is and become the nightmare queen. Surrender your soul to the devil if you dare. less