Shark's Fin

Peregrine Hays had one mission: to destroy the people who kidnapped and killed her best friend-a gang of sex-traffickers called the Scarecrow Jacks. But Peri never expected success to cost her quite so much. In the aftermath of burning the Jacks to the ground, Peri finds herself too recognizable to keep up her underground life and certainly too hot for Shark Santoyo, the mob-enforcer with the infinite number of secrets.
When Shark made a deal with the FBI to gather evidence against Geier, the boss of The Organization, he thought he'd be done in a few weeks. Six months later, Shark is faced with an FBI handler who is working against him, an assassination investigation, and an increasingly erratic Geier. As the threats mount, Shark realizes that if he wants to make it out of this mess alive, he's going to need the help of the only girl who has ever held his trust and his heart-Peregrine Hays.
Peri and Shark believe together they can make it through anything. But they've never taken on the FBI and Geier before. This time the choices may be staying together... or staying alive.