When her investigation into the murder of Peyton Hollis entangles her in a web of dangerous family secrets, Nikki finds herself framed for the crime and is forced to team up with the enigmatic Detective Martinez to escape imprisonment and worse.

High school senior Ella Cleary, whose synesthesia causes her to see colors with each interaction, must question everything she knows about her life when journalism student Alec investigates her parents' death.

Tasked with sensing the intentions of would-be assassins, Sonya is under constant pressure to protect the emperor of Riaznin. But in a palace of warring emotions and looming darkness, Sonya fears that the biggest danger to the empire may be herself. When threats of revolution pit Emperor Valko against his younger brother Prince Anton, Sonya must choose which brother to trust.

Branded the class loser, twelve-year-old Basil reluctantly becomes friends with a bossy new girl who, like Basil, has synesthesia and comes to Basil's aid when his estranged mother returns and turns his life upside down.