She's a fighter. He's a widower. Their age gap is problematic. Their blackened hearts don't care... For seventeen-year-old Gabriella Mitchell, every day is a fight. With her father long gone and her alcoholic mother completely checked out, she needs cash quickly or she’ll lose her siblings to the foster care system. Stumbling into mixed martial arts by accident, she finds a way to pay the bills, but is shocked when the local gym owner rejects her application to train under him. Micah “_Diablo_” Kennedy guards his heart with his fists and his lethal tongue. Having sworn off training women after the death of his wife and son, he's forced to change his tune when Gabbi smacks down one of his best fighters. When he finds himself attracted to the determined teen, he refuses to acknowledge the opportunity for a second chance at happiness. She’s a powerhouse, and he has no idea what to do with her, other than push her away… for both their sakes. As their taboo emotions intensify, Gabbi and Diablo battle their protective instincts and an intruding world of vice and violence. Will the broken-hearted teen and the self-proclaimed black-hearted devil accept that they’re stronger together before life knocks them out for the count? Black-Hearted Devil is a gritty MMA meets MC novel that takes place in the Australian mixed martial arts gym owned by the Black Shamrocks MC. This 100,000-word standalone is the first book in the Blackards MMA series of interconnected novels**. A dark tale of salvation and found family, this novel is set in a world where getting knocked down leaves you with no choice but to get back to your feet.Some readers may find some events in this storyconfronting,so reader discretion is advised.**