Even as the branches of peace are being offered, there are some who still believe those who are not human should be used as chattel. And they are willing to go to great lengths to retain their power.

Newlywed siren Oriana Paredes has been appointed Ambassador to her home islands now that communication between Northern Portugual and the magical races has been restored. But convincing her people that the new Portuguese Prince’s intentions are honorable after years of persecution is difficult. And her husband, Duilio, faces his own obstacles among the sirens where males are a rare and valuable commodity with few rights.

In addition to their diplomatic mission, the two hope to uncover the truth behind Oriana's mother's death. Evidence suggests that Spain—a country that has been known to enslave magical beings—may have infiltrated the siren authority. Unable to leave their post, Oriana and Duilio must call on Inspector Joaquim Tavares to root out the truth.

But even his seer’s gift cannot prepare him for what he will discover.