Dark Phoenix. The Phoenix Series, #2

Black magic. An immoral enemy who will stop at nothing to get what they want. And death-too close to those she cares about. Daughtry's life changed forever when she bonded with Cody and found a bone-deep, soul-to-soul love with a green-eyed man hell-bent on owning every part of her heart. Yet as she begins to master her magic, her abilities threaten to harm the people she holds most dear. When an opportunity arises for her to fix a past wrong, does she dare risk using her magic in order to set things right again?A soul sweeping darkness is lurking at the Colony, making the choice for her, and threatening the world she's built for herself.
But Daughtry soon discovers that if she's to have the future and love she's always wanted, she must fight for it.