This is a great book by Suzanne Brockmann.
This follow-up to HOT TARGET is the latest in a series of connected works of romantic suspense by Suzanne Brockmann. A traumatic shared past and the age difference between them divided FBI negotiator Max Bhagat and relief worker Gina Vitagliano, but the love and passion that each of them felt cannot be denied. So when Max learns that Gina has been captured by a dangerous and mysterious enemy, he will go to any length to rescue her. His partners in this enterprise are FBI agent Jules Cassidy and shady smuggler Grady "Jones" Morant, whose own love, Gina's co-worker Molly, was also kidnapped.1003