Black Mass (Phoenix Force #6)
Aleisha Maree

The years that followed threatened to destroy the little girl, but a boy she nicknamed her dark-haired angel finally freed her from the chains that had kept her prisoner for so much of her life.
Mac was on a path toward destruction, she was bent on revenge and had managed to achieve some on her own, but the main predator was still free and couldn’t be found.
Then, Claire came calling and she joined Phoenix Force.
Together the ladies help Mac bring down her final adversary, and as part of the team she is shown what it is to love, which opens her to the love her dark haired angel is offering when he again comes calling.