The members of Don't Get Mad aren't just mad anymore...they're afraid. And with Margot in a coma and Bree under house arrest, it's up to Olivia and Kitty to try to catch their deadly tormentor. But just as the girls are about to go on the offensive, Ed the Head reveals a shocking secret that turns all their theories upside down. The killer could be anyone, and this time he - or she - is out for more than just revenge.

It was supposed to be the weekend of their lives - an exclusive house party on Henry Island. Best friends Meg and Minnie are looking forward to two days of boys, booze, and fun-filled luxury. But what starts out as fun turns twisted after the discovery of a DVD with a sinister message: Vengeance is mine. And things only get worse from there. When a mysterious killer begins picking them off one by one, there's no escape. As the deaths become more violent and the teens turn on one another, can Meg find the killer before more people die?

When seventeen-year-old Dee Guerrera wakes up in a haze, lying on the ground of a dimly lit warehouse, she realizes she's about to be the next victim of the app. Knowing hardened criminals are getting a taste of their own medicine in this place is one thing, but Dee refuses to roll over and die for a heinous crime she didn't commit. Can Dee and her newly formed posse, the Death Row Breakfast Club, prove she's innocent before she ends up wrongfully murdered for the world to see? Or will The Postman's cast of executioners kill them off one by one?

Avery Grambs has a plan for a better future: Survive high school, win a scholarship, and get out. But her fortunes change in an instant when billionaire Tobias Hawthorne dies and leaves Avery virtually his entire fortune. The catch? Avery has no idea why - or even who Tobias Hawthorne is. To receive her inheritance, Avery must move into sprawling, secret passage-filled Hawthorne House, where every room bears the old man's touch - and his love of puzzles, riddles, and codes.

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