A decade ago in upstate New York, art student Emma McCullough walked into the woods and was never seen again. It’s a mystery that still haunts her bucolic university town and her broken family, especially her sister Haley, whose need for closure has become an obsession. But now, finally, the first piece of evidence in the vanishing has been found: Emma’s bracelet, lodged in a frozen piece of earth at the bottom of a gorge.

Four hikers enter the mountains. Only two return. But is it tragedy? Or treachery?

After the traumatic birth of her daughter at a New York City hospital, Rowan O’Sullivan returns home to her apartment with her perfect newborn, Lila. At her side are her husband, Gabe, and June, a part-time babysitter hired to help Rowan in any way she can. But in this time of joy, Rowan can’t shake the feeling that something isn’t right. She feels dread. She’s breaking.

Samantha Kingston has it all: the world's most crush-worthy boyfriend, three amazing best friends, and first pick of everything at Thomas Jefferson High—from the best table in the cafeteria to the choicest parking spot. Friday, February 12, should be just another day in her charmed life. Instead, it turns out to be her last. Then she gets a second chance. Seven chances, in fact.

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.

Dylan Woods hasn’t seen her best friend, Langston, in years. After he moved to Los Angeles, he ghosted her. Then he became Legendary, the biggest teen R&B artist on the planet. For the most part, Dylan has moved on, with her sights set on Juilliard. But when her parents announce that Langston is coming for a short stay with them, the entire family is thrilled. Except for Dylan. The idea of sharing a house with music’s biggest bad boy makes her stomach churn.

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).

The wealthy enclaves north of San Francisco are not the paradise they appear to be, and nobody knows this better than the students of a local high school. Despite being raised with all the opportunities money can buy, these vulnerable kids are navigating a treacherous adolescence in which every action, every rumor, every feeling, is potentially postable, shareable, viral.

Torrey Grey is famous. At least, on the internet. Thousands of people watch her popular videos on fashion and beauty. But when Torrey's sister is killed in an accident - maybe because of Torrey and her videos - Torrey's perfect world implodes. Now, strangers online are bashing Torrey. And at her new school, she doesn't know who to trust. Is queen bee Blair only being sweet because of Torrey's internet infamy? What about Raylene, who is decidedly unpopular, but seems to accept Torrey for who she is?

Chloe Green is so close to winning. After her moms moved her from SoCal to Alabama for high school, she’s spent the past four years dodging gossipy classmates and a puritanical administration at Willowgrove Christian Academy. The thing that’s kept her going: winning valedictorian. Her only rival: prom queen Shara Wheeler, the principal’s perfect progeny. But a month before graduation, Shara kisses Chloe and vanishes. On a furious hunt for answers, Chloe discovers she’s not the only one Shara kissed.

As soon as Seneca Frazier sees the post on the Case Not Closed website about Helena Kelly, she's hooked. Helena's high-profile disappearance five years earlier is the one that originally got Seneca addicted to true crime. It's the reason she's a member of the site in the first place. So when Maddy Wright, her best friend from the CNC site, invites Seneca to spend spring break in Connecticut looking into the cold case, she immediately packs her bag.

Amanda Hardy is the new girl in school. Like anyone else, all she wants is to make friends and fit in. But Amanda is keeping a secret, and she's determined not to get too close to anyone. But when she meets sweet, easygoing Grant, Amanda can't help but start to let him into her life. As they spend more time together, she realizes just how much she is losing by guarding her heart. She finds herself yearning to share with Grant everything about herself, including her past.

Dylan — a hopeless romantic — falls for Jordan, the new boy in town who runs hot and is able to conjure fire with the wave of his hand.

There are no more cheerleaders in the town of Sunnybrook. First there was the car accident - two girls dead after hitting a tree on a rainy night. Not long after, the murders happened. Those two girls were killed by the man next door. The police shot him, so no one will ever know his reasons. Monica's sister was the last cheerleader to die. After her suicide, Sunnybrook High disbanded the cheer squad. No one wanted to be reminded of the girls they'd lost.

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.

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).

When Alexis's little sister Kasey becomes obsessed with an antique doll, Alexis thinks she is just being her usual weird self. Things get weirder, though, when their house starts changing. Doors open and close by themselves; water boils on the unlit stove; and an unplugged air conditioner blasts cold air.

When her boyfriend dies a most untimely death, Aura--who can see ghosts--is forced to reconsider her relationship with the living and dead in Shade.

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.

Ariana Osgood has everything an Easton Academy girl could want: straight A's, the perfect boyfriend, and a coveted spot in exclusive Billings House. But on the first night of Christmas vacation, a blizzard traps her on campus with irresistible bad-boy Thomas Pearson. Alone. As the snow transforms Easton into a winter wonderland, Ariana finds herself falling for Thomas. But someone is watching their clandestine romance unfold, someone intent on turning their holiday weekend into a nightmare.

Milo Mitchell's life used to be charmed, but that was before her family dissolved, she went a little crazy, and her best friends started acting more like strangers. Spending Saturday morning in a treehouse with a stun gun for company and a herd of deer for friends is the only exciting thing in her life...until she shoots a fawn and finds her dart stuck in a guy. Her gorgeous victim is dressed in a Brioni tux and armed with a hanky. He has no idea who or where he is. Afraid her dart caused his amnesia, Milo takes him in.

Regan's brother Liam can't stand the person he is during the day. Like the moon from whom Liam has chosen his female namesake, his true self, Luna, only reveals herself at night. In the secrecy of his basement bedroom Liam transforms himself into the beautiful girl he longs to be, with help from his sister's clothes and makeup. Now, everything is about to change - Luna is preparing to emerge from her cocoon. But are Liam's family and friends ready to welcome Luna into their lives?

Two cousins, Rory and Arden, lie unconscious in a hospital burn unit. The fire, which broke out in their shared college dorm room, killed another student, and the police want answers. Tension between Rory and Arden's parents was already at an all-time high before the fire, owing to a recent financial crisis and the decline of the family business. As the parents huddle anxiously in the waiting room, carefully avoiding the subject of their own unraveling relationships, disturbing truths come to light.

When Adam Blake lands the best elective ever in his senior year, serving as an aide to the school psychologist, he thinks he's got it made. Sure, it means a lot of sitting around, which isn't easy for a guy with ADHD, but he can't complain, since he gets to spend the period texting all his friends. Then the doctor asks him to track down the troubled freshman who keeps dodging her, and Adam discovers that the boy is Julian - the foster brother he hasn't seen in five years.

Sloane Munster had the perfect life - until she didn't. Now 17-year-old Sloane is trying to reboot her life after a serious accident left her badly scarred and emotionally traumatized. Starting her senior year at a different school, she recognizes Luke Naughton, a swimmer whom she once had a crush on, in her new class. But when she smiles at him, he glares back with revulsion, and she's sure he's disgusted by her ugly scar.

There is a secret organization that cultivates teenage spies. The agents are called Love Interests because getting close to people destined for great power means getting valuable secrets. Caden is a Nice: the boy next door, sculpted to physical perfection. Dylan is a Bad: the brooding, dark-souled guy, and dangerously handsome. The girl they are competing for is important to the organization, and each boy will pursue her. Will she choose a Nice or the Bad?

Reality, it turns out, is often not what you perceive it to be - sometimes, there really is someone out to get you. For fans of Silver Linings Playbook and Liar, this thought-provoking debut tells the story of Alex, a high school senior - and the ultimate unreliable narrator - unable to tell the difference between real life and delusion. Alex fights a daily battle to figure out what is real and what is not.

Sixteen-year-old physics nerd Aysel is obsessed with plotting her own death. With a mother who can barely look at her without wincing, classmates who whisper behind her back, and a father whose violent crime rocked her small town, Aysel is ready to turn her potential energy into nothingness.

When 16-year-old Alice is diagnosed with leukemia, her prognosis is grim. To maximize the time she does have, she vows to spend her final months righting wrongs - however she sees fit. She convinces her friend Harvey, who she knows has always had feelings for her, to help her with a crazy bucket list that's as much about revenge (humiliating her ex-boyfriend and getting back at her archnemesis) as it is about hope (doing something unexpectedly kind for a stranger).

Mara Dyer believes life can't get any stranger than waking up in a hospital with no memory of how she got there. It can. She believes there must be more to the accident she can't remember that killed her friends and left her strangely unharmed. There is. She doesn't believe that after everything she's been through, she can fall in love. She's wrong.