Ethan Cole is missing.
His last message: Find Rook.

When Ethan Cole disappeared on a mission, his sister, Allison, swore she’d bring him home—or die trying. Following the only clue he left behind, she tracks down the man he trusted most: Ronan “Rook” Hayes, former Navy SEAL and Blackstone Tactical operative.

Rook owes Ethan his life. Protecting Allison is the least he can do. But the woman who shows up at his door isn’t the kid sister he remembers from old photos—she’s smart, relentless, and far too willing to throw herself into danger. And when the threats that took her brother start circling closer, Rook realizes keeping his distance isn’t an option.

When the truth behind Ethan’s disappearance resurfaces, danger follows fast—and no one walks away untouched.

Because some debts can only be repaid with blood.
And some secrets can’t stay buried.