Dr. Brielle Averie Arias has spent her life saving people. Brilliant, compassionate, and stubborn, she never walks away from someone in danger, even if it risks her own life. As an ER doctor in the city’s busiest hospital, she stays calm when everyone else falls apart. What she can’t handle is Siege Arden Valentino. Siege Arden is a wealthy, ruthless billionaire who runs Valentino International. To the public he’s a powerful, notorious bachelor. To the underworld, he’s worse: the secret head of a massive criminal organization. Feared, untouchable, and cold, he’s the last man Brielle expects to treat. Their first meeting is a disaster. Their second is worse. Their third ends with a gunshot. After an assassination attempt, Siege is brought to Brielle’s hospital. She’s forced to save the most dangerous man in the city. But his wounds aren’t the only things he’s hiding. Someone inside Siege’s empire is betraying him. And that someone now wants Brielle. With help from her best friend, Dr. Caspian Hidalgo, and Caspian’s girlfriend, Charmaine Galvez, Brielle is pulled into a dangerous game of stolen medical records, corrupt officials, organized crime, and a mysterious golden half mask. Siege tells Brielle to stay away. Brielle refuses. Their fights turn into tension, then attraction neither can control. But just as Brielle thinks she’s seeing the man behind Siege’s mask, the truth hits: Siege didn’t meet her by accident. Someone had been watching her long before him. The biggest secret is closer than she thinks. The man she believed was just a billionaire with a dark past may be the only one standing between her and a war that has been waiting for her arrival.