Faith by Mary E Thompson

She never planned to go back. He never thought he’d see her again. Not everyone is happy about their reunion.

Twelve years was a long time to be a ghost. Nina thought leaving home would alleviate her grief and guilt, but she had no idea the hell she was running toward. Twelve years of trusting a person who would turn on Nina in a heartbeat if she ever pushed back. Staying put wasn’t an option. Not if Nina was ever going to look herself in the mirror again.
Zeke never forgave himself for letting his best friend’s little sister sneak away from him that night twelve years ago. Even worse than her leaving was her never coming back. He’d given up hope of finding her, even though he checked the morgue on a regular basis. Until his phone rang and the voice he never thought he’d hear again whispered his name.
The only thing Zeke wants to do is protect Nina. But keeping her captive in his home is no better than what she went through for the last twelve years. Nina is determined to end the reign of terror that kept her away from her loved ones. She’s going to need all her strength, and all of Zeke’s, to take down the organization she swore her life to. Even that might not be enough.