There's a pub in New York City that's been in the Finnegan family for generations. Now Kieran and her three brothers own it. Kieran Finnegan is also, as it happens, a criminal psychologist--a fitting reaction, perhaps, to her less-than-lawful teenage past. Meanwhile, New York's Diamond District has been hit by a rash of thefts. No one's been killed--until now. FBI agent Craig Frasier is brought in to investigate; he and Kieran meet at a jewelry store...

FBI Special Agent and counterterrorism expert Sarah Cahill doesn't know the man she's tracking. But the so-called "Prince of Darkness" knows her-intimately. So when Sarah is summoned to Wall Street to investigate, little does she know that she's the one under surveillance… until the terrorist infiltrates himself into the deepest, most desperate corners of her life. Soon Sarah is plunged into a deep labyrinth of intrigue and catastrophe as she races...