Six

Emmalina is an immortal darkling. A half human, half dark witch. Though she was born with all six emotions, she has arrived at her eighteenth birthday and all but one miserable emotion has fled her body.
The mission of the dark witches who control the new, darker world is simple—eradicate weakness. Weakness is summed up in one word. Emotion. Or, the six. Anger, fear, sadness, joy, surprise, and love.
The dark witches want her. She wants something else more.
She wants six.