His eyes are the first thing she sees.
They are red. A bloody crimson, glowing like hellfire in the middle of the dark mass that is he has materialized in, beckoning her closer.
She steps forward, uncertainty trembling on her lips as she reaches out a hand, fingers curling in on each other. The question tumbles forth easily: "Who are you?"
He smiles, his mouth the only other thing visible in an otherwise utterly black figure. "Anyone who you wish me to be. You merely need to give me the orders, and I shall obey."
His voice is otherworldly. It is as if a shadow had learned to speak - silky, smooth, dark and dangerous. She shivers at the sound of it, resisting the urge to hold herself as a chill settles into her very bones. His smile is that of a crescent moon, an upwards curve of a smirk as he watches her like a wolf observing a lamb. "Well, girl? What say you? You did summon me, did you not?"
The girl looks down at her hands. They are forever soiled, though it is invisible, and she has come this far already. She is eternally damned as it is. Why stop now?
"Yes," she answers in a feeble attempt to keep her voice from shaking. "Yes, I did. I need you - your power. Will you help me?"
"You know the price," he chuckles, though it is not in a mocking manner. He is simply amused. "If you pay it, I shall gladly be of service."
She stares him down defiantly, posture straightening and her eyes steely with resolve. "In exchange for my soul, you will be my right hand. My weapon. You will do as I say, no matter what the order is. Do you find this to your agreement, demon?"
His smile widens even more, which should be impossible. "...yes. I do."
The next few moments happen fast. Too fast. The girl's next words are cut short by a scream as every bit of her body pulsates with excruciating pain, as if her skin was doused in fire. She falls to the ground, gasping for breath and clutching at her neck, convulsing violently. The demon stands above her, one hand stretching outwards and landing on her shoulder.
She stops immediately, frozen by his touch, and she stares up at him with eyes so tenacious that they're helpless.
Despite herself, the girl whimpers as the last of the torment subsides.
"Hush now, my lady," the demon coos as his shadow begins to morph into something else - something more human. He places a finger against her lips, his skin colder than ice. Her eyesight begins to dim as darkness washes over her, obstructing her view of him. "Hush. You need not worry. I shall take care of it all. Now...what are you first orders?"
The last thing she hears before she gladly gives herself to oblivion is his laughter; frigid, impish and wickedly grim.
"Yes, my lady."