When 16-year-old Tess Kendrick is sent to live with her older sister, Ivy, she has no idea that the infamous Ivy Kendrick is Washington, DC's number-one "fixer" - known for making politicians' scandals go away for a price. No sooner does Tess enroll at Hardwicke Academy than she unwittingly follows in her sister's footsteps and becomes DC's premier high school fixer, solving problems for elite teens.

Seventeen-year-old Cassie is a natural at reading people. Piecing together the tiniest details, she can tell you who you are and what you want. But, it's not a skill that she's ever taken seriously. That is, until the FBI come knocking: they've begun a classified program that uses exceptional teenagers to crack infamous cold cases, and they need Cassie. What Cassie doesn't realize is that there's more at risk than a few unsolved homicides—especially when she's sent to live with a group of teens whose gifts are as unusual as her own

Bailey Morgan isn't the type of girl who shows a lot of skin, but somehow, she ends up in a dressing room at the mall with her friend Delia applying a temporary tattoo to her lower back. Never one to suffer fashion doubt, trendsetter Delia knows exactly where she wants her own tattoo: on her stomach, right where her shirt ends can you say "midriff"? Annabelle, the quiet one, chooses the back of her neck, and tomboy Zo plasters hers on the top of her foot.

Bayport High's Varsity cheer squad is made up of the hottest of the hot. But this A-list is dangerous in more ways than one. The Squad is actually a cover for the most highly trained group of underage government operatives the United States has ever assembled. They have the perfect cover, because, beyond herkeys and highlights, no one expects anything from a cheerleader.

When fifteen-year-old Clary Fray heads out to the Pandemonium Club in New York City, she hardly expects to witness a murder - much less a murder committed by three teenagers covered with strange tattoos and brandishing bizarre weapons. Then the body disappears into thin air. It's hard to call the police when the murderers are invisible to everyone else and when there is nothing - not even a smear of blood - to show that a boy has died. Or was he a boy?