She spent her whole life chasing ghosts... he's just another name to add to the list. When Delilah Jones wakes up with missing memories, scars she doesn't remember earning, and a warning from a former superior urging her to stay quiet, she knows better than to ask too many questions. Only one certainty burns through the fog: her sister has vanished. The FBI-the agency she once served-refuses to reopen the case, burying it along with her past. With nowhere else to turn, Delilah seeks out the one man who doesn't care about badges, rules, or consequences. Frank Castle is the last person she should trust. But as they search for the truth, their partnership turns into something deeper... and far more dangerous. Some battles cost blood.
 Others...cost your heart.