Summer is in full swing at The Number Nine Plaza, the world's largest and most fabulous department store, and best friends Zander and Natasha are looking forward to weeks of discovery after thwarting the vengeful Darkbloom's attempt to destroy The Nine. But has the danger truly passed? Store employees begin acting oddly, a long-lost clue to an ancient store mystery is uncovered, and Zander and Natasha themselves become targets for attack.

Summer, 1940. Nineteen-year-old Jakob Novis and his quirky younger sister Lizzie share a love of riddles and puzzles. And now they’re living inside of one. The quarrelsome siblings find themselves amidst one of the greatest secrets of World War II—Britain’s eccentric codebreaking factory at Bletchley Park. As Jakob joins Bletchley’s top minds to crack the Nazi's Enigma cipher, fourteen-year-old Lizzie embarks on a mission to solve the mysterious disappearance of their mother.

When eleven-year-old Hank’s mom doesn’t come home, he takes care of his toddler sister, Boo, like he always does. But it’s been a week now. They are out of food and mom has never stayed away this long… Hank knows he needs help, so he and Boo seek out the stranger listed as their emergency contact. But asking for help has consequences. It means social workers, and a new school, and having to answer questions about his mom that he's been trying to keep secret. And if they can't find his mom soon, Hank and Boo may end up in different foster homes—he could lose everything.

Max Bretzfeld doesn’t want to move to London. Leaving home is hard and Max is alone for the first time in his life. But not for long. Max is surprised to discover that he’s been joined by two unexpected traveling companions, one on each shoulder, a kobold and a dybbuk named Berg and Stein. Germany is becoming more and more dangerous for Jewish families, but Max is determined to find a way back home, and back to his parents. He has a plan to return to Berlin. It merely involves accomplishing the impossible: becoming a British spy.

Jake is a scrappy orphaned pickpocket living by his wits on the streets of Victorian London. Lately he’s started seeing ghosts and discovers he can move solid objects with his mind! He has no idea why. Next thing he knows, a Sinister Gentleman and his minions come hunting him. On the run for his life, Jake is plunged headlong into a mysterious world full of magic and deadly peril. A world that holds the secret to who he really is: the long-lost heir of an aristocratic family - with magical powers!

Zander Olinga’s grandmother is the owner of the fabled Number Nine Plaza, the spectacular nineteen-story skyscraper. The Nine has everything imaginable, including a massive Ferris wheel on its rooftop, monorail tracks suspended from its ceiling, and twenty-five glass elevators. But there’s something evil looming in the shadows, and strange accidents start befalling the guests. When Zander and his friend Natasha come across a series of inscriptions hidden throughout the walls of The Nine, they discover that the clues will lead them to a magical object which protects the store’s very existence.

When Grady and his dad learn that the town oddball, Eudora "Kooky" Klinch, left something for them in her will, they can only imagine what it might be. When it turns out it's an old scrap of 300-year-old tapestry, they are bitterly disappointed. But the cloth comes with a note saying, "This is no ordinary piece of needlework. It's a treasure map. Riddles and Clues. To the victor go the riches." Grady's dad dismisses it, but Grady thinks this could be the chance of a lifetime.

The last thing Barclay Thorne ever wanted was an adventure. Thankfully, as an apprentice to the town’s mushroom farmer, Barclay need only work hard and follow the rules to one day become the head mushroom farmer himself. No danger required. But then Barclay accidentally breaks his town’s most sacred rule: Never ever ever stray into the Woods, for within the Woods lurk vicious magical Beasts. To Barclay’s horror, he faces a fate far worse than being eaten: He unwittingly bonds with a Beast and is run out of town by an angry mob.

Olive Cobin Zang has . . . issues. And they mostly aren’t her fault. (No, really!) Though she often slips under the radar, problems have a knack for finding her. So, imagine her doubts when she’s suddenly dropped off at the strangest boarding school ever: a former castle turned prison that's now a “reforming arts school”!

As the son of Hades, Nico di Angelo has been through so much, from the premature deaths of his mother and sister, to being outed against his will, to losing his friend Jason during the trials of Apollo. But there is a ray of sunshine in his life—literally: his boyfriend, Will Solace, the son of Apollo. Together the two demigods can overcome any obstacle or foe. At least, that's been the case so far . . . Now Nico is being plagued by a voice calling out to him from Tartarus, the lowest part of the Underworld.

March 1987. The FDA has just approved AZT as the first drug to treat AIDS. But it's too late for Iris’s dad. He’s dying, confined to a hospital bed in the apartment he shares with his boyfriend, J.R. (who Iris hates), four floors above Iris and her mom. Soon, all Iris has left of her kind, loving dad are memories, photos, and a binder full of the poems they used to exchange. As Iris navigates her rage and grief, she resolves to speak out against the rampant fear, misinformation, and prejudice surrounding AIDS—and find the pieces of Dad that she never knew before.

Will is the only round kid in a school full of thin ones. So he hides…in baggy jeans and oversized hoodies, in the back row during class, and anywhere but the cafeteria during lunch. But shame isn’t the only feeling that dominates Will’s life. He’s also got a crush on a girl named Jules who he knows he doesn’t have a chance with, because of his size—but he can’t help wondering what if? Will’s best shot at attracting Jules’s attention is by slaying the Will Monster inside him by changing his eating habits and getting more exercise.

Simon O'Keeffe's biggest claim to fame should be the time his dad accidentally gave a squirrel a holy sacrament. Or maybe the alpaca disaster that went viral on YouTube. But the story the whole world wants to tell about Simon is the one he'd do anything to forget: the story in which he's the only kid in his class who survived a school shooting. Two years after the infamous event, twelve-year-old Simon and his family move to the National Quiet Zone—the only place in America where the internet is banned.

My name is Danny Day, and I live every day twice. The first time, it's a "discard day". It's kind of like a practice run. At the end of the day, I go to bed, wake up, and poof everything gets reset, everything except my memory, that is. The second time, everything is normal, just like it is for everyone else. That's when everything counts and my actions stick. As you could probably guess, "Sticky Day" Danny is very different from "Discard Day" Danny.

On the day they are born, every Swift child is brought before the sacred Family Dictionary. They are given a name, and a definition. A definition it is assumed they will grow up to match. Meet Shenanigan Swift: Little sister. Risk-taker. Mischief-maker. Shenanigan is getting ready for the big Swift Family Reunion and plotting her next great scheme: hunting for Grand-Uncle Vile’s long-lost treasure. She’s excited to finally meet her arriving relatives—until one of them gives Arch-Aunt Schadenfreude a deadly shove down the stairs.

It is 1944. A teenager named Rudolf (Rudi) Vrba has made up his mind. After barely surviving nearly two years in the Auschwitz concentration camp in Poland, he knows he must escape. Even if death is more likely. Rudi has learned the terrible secret hidden behind the heavily guarded fences of concentration camps across Nazi-occupied Europe: the methodical mass killing of Jewish prisoners. As trains full of people arrive daily, Rudi knows that the murders won’t stop until he reveals the truth to the world―and that each day that passes means more lives are lost.

Olive Cobin Zang has . . . issues. And they mostly aren’t her fault. (No, really!) Though she often slips under the radar, problems have a knack for finding her. So, imagine her doubts when she’s suddenly dropped off at the strangest boarding school ever: a former castle turned prison that's now a “reforming arts school”!

Everyone knows Fall Hollow is haunted. It has been ever since Abigail Snook went into the woods many years ago, never to be seen again. Since then, it’s tradition for the sixth graders at Beckett Elementary to play the Bellwoods Game on Halloween night. Three kids are chosen to go into the woods. Whoever rings the bell there wins the game and saves the town for another year, but if Abigail’s ghost captures the players first, the spirit is let loose to wreak havoc on Fall Hollow—or so the story goes.

Adam and Victor are brothers who have the usual fights over the remote, which movie to watch and whether or not it's morally acceptable to eat people. Well, not so much eat . . . just drink a little blood. They're vampires, hiding in plain sight with their eclectic yet loving family. Ten-year-old Adam knows he has a better purpose in his life (well, immortal life) than just drinking blood, but fourteen-year-old Victor wants to accept his own self-image of vampirism.

Trev would do anything to protect his mom and sisters, especially from his stepdad. But his stepdad’s return stresses Trev—because when he left, he threatened Trev’s mom. Rather than live scared, Trev takes matters into his own hands, literally. He starts learning to box to handle his stepdad. But everyone isn’t a fan of his plan, because Trev’s a talented artist, and his hands could actually help him build a better future.

Felix Rannells and Benji Porter were never supposed to be field-trip partners. Felix is a rule follower. Benji is a rule bender. They're not friends. And they don't have anything to talk about. Until...they find a wallet. A wallet that belongs to tech billionaire Laura Friendly. They're totally going to return it - but not before Benji "borrows" 20 dollars to buy hot dogs. Because 20 dollars is like a penny to a billionaire, right?

Anna Hunt may be the new girl at East Middle School, but she can already tell there’s something off about her eighth-grade class. Rachel Riley, who just last year was one of the most popular girls in school, has become a social outcast. But no one, including Rachel Riley herself, will tell Anna why.

Middle school is a dungeon… At least, that’s how Jess sees it. Luckily, she and her best friend Olivia know how to escape into the sprawling worlds of their own imaginations. The two friends have always loved making up stories, first with little kid games of make-believe, and more recently with the fantasy roleplaying game, Dungeons & Dragons. When they play, Olivia runs the game as Dungeon Master and Jess is the solo party member, playing a take-no-prisoners, lone-wolf fighter of her own design named Sir Corius.

Sadie Rivera has been haunted all her life by a vengeful ghost—a ghost that doesn’t want her to make any friends. The moment she tries? Cue exploding lightbulbs, chilling gusts of wind, and slamming doors. Last year, Sadie got fed up. Last year, she made a best friend, Anna. So when the ghost caused an accident that killed her best friend, Sadie knew it was all her fault. Which is why she’s not going to make any friends this year at her new school. At least until mysterious cool girl Mal shows up, and the ghost doesn’t bother her for once.

Feng-Li can't wait to discover America with her family! But after an action-packed vacation, her parents deliver shocking news: They are returning to Taiwan and leaving Feng-Li and her older siblings in California on their own. Suddenly, the three kids must fend for themselves in a strange new world--and get along. Starting a new school, learning a new language, and trying to make new friends while managing a household is hard enough, but Bro and Sis's constant bickering makes everything worse.