Shortly before her 17th birthday, Emma discovers she has a long-lost twin named Sutton Mercer. She contacts Sutton, who agrees to a rendezvous but never shows up. Curious at first, Emma slips into Sutton's ultra-glamorous life, assuming her identity. When it becomes clear that Sutton is not coming back, that someone made sure she never could, Emma plunges in to investigate who could have wanted her sister gone (a fairly long list, she discovers).

Spencer covets her sister's boyfriend. Aria's fantasizing about her English teacher. Emily's crushing on the new girl at school. And Hanna uses some ugly tricks to stay beautiful. But they've all kept an even bigger secret since their friend Alison vanished.

Musical genius Mackenzie is desperate to get into Juilliard, even if it means playing a duet with her best friend's boyfriend. Beautiful Ava isn't above using her assets to get an A. Athletic Caitlin is one goal away from a soccer scholarship - if she can call a time-out on her relationship drama. Popular Julie has it all - literally, thanks to her hoarder mom - and will do anything to keep her family's secret. And former It Girl Parker is experimenting with her wild side.

Aldrich University is rocked to its core when a hacker dumps 40,000 people's e-mails - the entire faculty, staff, students, alums - onto an easily searchable database. Rumors and affairs immediately leak, but things turn explosive when Kit Manning's handsome husband, Dr. Greg Strasser, is found murdered. Kit's sister, Willa, returns for the funeral, setting foot in a hometown she fled 15 years ago, after a night she wishes she could forget. As an investigative reporter, Willa knows something isn't right about the night Greg was killed, and she's determined to find the truth.

The only thing more flawless than a Saybrook’s solitaire is the family behind the diamond empire. Beauties, entrepreneurs, debutantes, and mavens, the Saybrooks are the epitome of high society. Anyone would kill to be one of them. But be careful what you wish for, because if you were a Saybrook, you’d be haunted by secrets and plagued by a dark streak of luck. Tragedy strikes the prominent family yet again on a beautiful morning in May when 34-year-old Poppy, the most remarkable Saybrook of them all, flings herself from the window of her office.

When debut novelist Eliza Fontaine is found at the bottom of a hotel pool, her family at first assumes that it’s just another failed suicide attempt. But Eliza swears she was pushed, and her rescuer is the only witness. Desperate to find out who attacked her, Eliza takes it upon herself to investigate. But as the publication date for her novel draws closer, Eliza finds more questions than answers. Like why are her editor, agent, and family mixing up events from her novel with events from her life? Her novel is completely fictional, isn’t it?

When the principal of an elite California preschool is attacked, three moms - who feel like outsiders among the school's manicured and ultra-wealthy community - must work together to uncover what she's hiding, figure out who's trying to frame them, and make sure their own secrets stay hidden.

Pay close attention, and you might solve this. On Monday afternoon five students at Bayview High walk into detention. Bronwyn, the brain, is Yale-bound and never breaks a rule. Addy, the beauty, is the picture-perfect homecoming princess. Nate, the criminal, is already on probation for dealing. Cooper, the athlete, is the all-star baseball pitcher. And Simon, the outcast, is the creator of Bayview High's notorious gossip app. Only Simon never makes it out of that classroom. Before the end of detention, Simon's dead.

Stella and Ellie Steckler are only a year apart, but their different personalities make their relationship complicated. Stella is single-minded, driven, and she keeps to herself. Cross-country running is her life and she won't let anything get in the way of being the best. Her sister Ellie is a talented runner too, but she also lets herself have fun. She has friends. She goes to parties. She has a life off the course.

Milly, Aubrey, and Jonah Story are cousins, but they barely know each another, and they've never even met their grandmother. Rich and reclusive, she disinherited their parents before they were born. So when they each receive a letter inviting them to work at her island resort for the summer, they're surprised...and curious.

Four years ago, Brynn left Saint Ambrose School following the shocking murder of her favorite teacher—a story that made headlines after the teacher’s body was found by three Saint Ambrose students in the woods behind their school. The case was never solved. Now that Brynn is moving home and starting her dream internship at a true-crime show, she’s determined to find out what really happened.

Red Kenny is on a road trip for spring break with five friends: Her best friend - the older brother - his perfect girlfriend - a secret crush - a classmate - and a killer. When their RV breaks down in the middle of nowhere with no cell service, they soon realize this is no accident. They have been trapped by someone out there in the dark, someone who clearly wants one of them dead. With eight hours until dawn, the six friends must escape, or figure out which of them is the target.

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?

After the death of her mom (screw cancer), seventeen-year-old Cecelia Ellis goes to live with her estranged grandmother, a celebrated author whose Victorian mansion is as creepy as the murder mysteries she writes. On the surface, life is utterly ordinary in the California coastal town . . . until the homecoming queen is murdered. And she’s not Seaview’s first pretty dead queen.

My whole world changed when I stepped inside the academy. Nothing is right about this place or the other students in it. Here I am, a mere mortal among gods...or monsters. I still can't decide which of these warring factions I belong to, if I belong at all. I only know the one thing that unites them is their hatred of me. Then there's Jaxon Vega. A vampire with deadly secrets who hasn't felt anything for a hundred years. But there's something about him that calls to me, something broken in him that somehow fits with what's broken in me. Which could spell death for us all.