Zee went missing for a year. And when he came back, he was...different. Nobody knows what happened to him. At Zee's welcome home party, Justin and the neighborhood crew play Hide and Seek. But it goes wrong. Very wrong. One by one, everyone who plays the game disappears, pulled into a world of nightmares come to life. Justin and his friends realize this horrible place is where Zee had been trapped. All they can do now is hide from the Seeker.

Tessa Woodward isn't exactly thrilled to move to rainy, cold Chicago from her home in sunny Florida. But homesickness turns to icy fear when unexplainable things start happening in her new house. Things like flickering lights, mysterious drawings appearing out of nowhere, and a crackling noise she can feel in her bones. When her little brother's doll starts crying real tears, Tessa realizes that someone - or something - is trying to communicate with her. And it involves a secret that's been shrouded in mystery for more than 100 years.

Twelve-year-old Hazel Woods has always had an unusual knack for sleuthing. Some may call it snooping, but all she really wants is to solve mysteries around town. So, when she not-so-accidentally overhears her brother Den planning to sneak into the cemetery at night for an epic game of hide-and-seek, she decides to secretly tag along. This seems like the perfect opportunity to investigate the claims that the cemetery is haunted.

Mallory hasn't quite adapted to life in her new town of Eastport yet. Maybe it's because everyone is obsessed with keeping the town's reputation as the most cursed town in the US. And thanks to the nightmares she's had since arriving, Mallory hardly sleeps. Combined with the unsettling sensation of being watched, she's quickly becoming convinced there's more to her town. Something darker.

Claire has absolutely no interest in the paranormal. She's a scientist, which is why she can't think of anything worse than having to help out her dad on one of his ghost-themed Chicago bus tours. She thinks she's made it through when she sees a boy with a sad face and dark eyes at the back of the bus. There's something off about his presence, especially because when she checks at the end of the tour...he's gone.

Link, Michael, and Dana live in a quiet town. But it's woken up very quickly when someone sneaks into school and vandalizes it with a swastika. Nobody can believe it. How could such a symbol of hate end up in the middle of their school? Who would do such a thing? Because Michael was the first person to see it, he's the first suspect. Because Link is one of the most popular guys in school, everyone's looking to him to figure it out. And because Dana's the only Jewish girl in the whole town, everyone's treating her more like an outsider than ever.

Twelve-year-old Jolene spends every day she can at the library watching her favorite livestream: The Desert Aviator, where twelve-year-old "Addie Earhart" shares her adventures flying an ultralight plane over the desert. While watching this daring girl fly through the sky, Jolene can dream of what it would be like to fly with her, far away from her own troubled home life where her mother struggles with a narcotic addiction. And Addie, who is grieving the loss of her father, finds solace in her online conversations with Jolene, her biggest - and only - fan.

Bell has spent his whole life—all eleven years of it—on Mars. But he's still just a regular kid—he loves cats and any kind of cake, and is curious about the secrets the adults in the US colony are keeping. Like, why don't they have contact with anyone on the other Mars colonies? Why are they so isolated? When a virus breaks out and the grown-ups all fall ill, Bell and the other children are the only ones who can help. It's up to Bell—a regular kid in a very different world—to uncover the truth and save his family...and possibly unite an entire planet.

Charity Curtis has the summer job of her dreams, playing the “final girl” at Camp Mirror Lake. Guests pay to be scared in this full-contact terror game, as Charity and her summer crew recreate scenes from a classic slasher film, Curse of Camp Mirror Lake. The more realistic the fear, the better for business. But the last weekend of the season, Charity’s co-workers begin disappearing. And when one ends up dead, Charity’s role as the final girl suddenly becomes all too real. If Charity and her girlfriend Bezi hope to survive the night, they’ll need figure out what this killer is after.

Amari Peters has never stopped believing her missing brother, Quinton, is alive. Not even when the police told her otherwise, or when she got in trouble for standing up to bullies who said he was gone for good. So when she finds a ticking briefcase in his closet, containing a nomination for a summer tryout at the Bureau of Supernatural Affairs, she’s certain the secretive organization holds the key to locating Quinton - if only she can wrap her head around the idea of magicians, fairies, aliens, and other supernatural creatures all being real.

Ever since Ellie wore a whale swimsuit and made a big splash at her fifth-birthday party, she's been bullied about her weight. To cope, she tries to live by the Fat Girl Rules - like "no making waves", "avoid eating in public", and "don't move so fast that your body jiggles". And she's found her safe space - her swimming pool - where she feels weightless in a fat-obsessed world. In the water, she can stretch herself out like a starfish and take up all the room she wants. It's also where she can get away from her mom, who thinks criticizing Ellie's weight will motivate her to diet.

Decades after the Vietnam War and Toby’s life-changing summer with Zachary Beaver, Toby’s daughter, Rylee, is at a crossroads - her best friend, Twig, has started pushing her away just as Ben, a new kid from New York, settles into their small town of Antler. Rylee befriends Ben and learns that Ben’s father was a first responder on 9/11. The two unlikely friends soon embark on a project to find Zachary Beaver and hopefully reconnect him with Rylee's father almost 30 years later.

Daniel Redmayne is fast asleep on the first night of a white water rafting trip when he's awoken by screams. The dam has failed. The river is surging, and their camp will be under water in a matter of moments. As the shrieking roar of the river rushes closer, the kids scramble to higher ground. They make it; their counselors do not. Now they're on their own, with barely any food or supplies, in the middle of the Montana wilderness. Do Daniel and his four classmates have what it takes to stay alive until they can get rescued?

Ten-year-old Anthony Joplin has made it to double digits! Which means he's finally old enough to play in the spades tournament every Joplin Man before him seems to have won. So while Ant's friends are stressing about fifth grade homework and girls, Ant only has one thing on his mind: how he'll measure up to his father's expectations at the card table. Then Ant's best friend gets grounded, and he's forced to find another spades partner. And Shirley, the new girl in his class, isn't exactly what he has in mind.

Ophelia Harrison used to live in a small house in the Georgia countryside. But that was before the night in November 1922, and the cruel act that took her home and her father from her. Which was the same night that Ophie learned she can see ghosts. Now Ophie and her mother are living in Pittsburgh with relatives they barely know. In the hopes of earning enough money to get their own place, Mama has gotten Ophie a job as a maid in the same old manor house where she works.