The Vow. The Blackroot Legacy

She doesn't burn things down. She makes them impossible to hide. When Megaera Cirillo steps into the war room her mother and sister left behind, she doesn't pick up a weapon, she picks up a marker. Where her mother struck with precision and her sister struck with fire, Meg plans to dismantle the machine that protected the men who destroyed their family: not through blood, but through exposure. Her first target is Thomas Vale - former intelligence operative, private security consultant, and the architect of the operation that changed everything.
He hides in plain sight, behind NDAs and respectable contracts. He believes powerful men will always need someone like him. Meg intends to make that assurance worthless. But someone is already watching her work. The alterations are precise, almost thoughtful, and they shouldn't be possible. As Meg races to map the invisible intruder in her system, she finds herself circling back to the one person who has always noticed her silences more than her words: HexMart, the voice on the other side of a late-night gaming channel who seems to understand the way she thinks better than anyone should.
In a world where information is the only weapon that matters, trust is the most dangerous variable of all. And Meg is beginning to wonder if someone has been playing her game better than she has. The Vow is the third book in the Blackroot Legacy series for fans of sharp heroines and psychological cat-and-mouse tension.