The stakes have never been higher for the young Blue Bloods of Manhattan. After their brief yet beautiful bonding ceremony in Italy, Schuyler Van Alen and Jack Force depart for Egypt, desperate to find the elusive Gate of Promise before Jack must face his twin, Mimi, for a blood trial. A blood trial that only one of them can survive. But everything Schuyler thought she knew about the gate turns out to be a lie, and they soon find themselves ensnared in a deadly battle against the demon-born. Schuyler and Jack take up arms, only to realize that there is a much graver threat simmering in the Kingdom of the Dead.

With the stunning revelation surrounding Bliss's true identity comes the growing threat of the sinister Silver Bloods. Once left to live the glamorous life in New York City, the Blue Bloods now find themselves in an epic battle for survival. Not to worry, love is still in the air for the young vampires of the Upper East Side. Or is it? Jack and Schuyler are over. Oliver is brokenhearted. And only the cunning Mimi seems to be happily engaged.

Young, fanged and fabulous, Melissa de la Cruz's vampires unite in this highly anticipated fourth installment of the 

Schuyler Van Alen's blood legacy has just been called into question. Is the young vampire in fact a Blue Blood, or is it the sinister Silver Blood that runs through her veins? As controversy swirls, Schuyler is left stranded in the Force household, trapped under the same roof as her cunning nemesis, Mimi Force, and her forbidden crush, Jack Force.