Zach should’ve outgrown his imaginary friend by now. He knows this. He’s 11, long past the days when kids are supposed to go on epic make-believe adventures with their invisible friends. But after the death of his father five years ago, all Zach wanted was an escape from the real world. So his imaginary friend, Shovel, hasn’t faded away like the other kids’ have. Their imaginary friendship grew stronger. But now Zach’s in middle school, and things are getting awkward. His best friend ditched him for a cooler crowd.

Eve looks like an ordinary 12-year-old girl, but there’s nothing ordinary about her. She has no last name. No parents or guardian. She’s on the run from a dangerous and secretive organization that will stop at nothing to track her down. And most astonishing of all: she’s a robot, a product of Eden Laboratories. When Eve discovers the truth, she realizes everything she thought she knew about herself is a lie. Eve manages to escape, fleeing the lab, the only home she’s ever known.

For Joshua Dread, middle school is proving to be, well, awkward. Not only do bullies pick on him, but do you see those supervillains over there trying to flood the world? The ones that everyone, including his best friend, Milton, are rooting for Captain Justice to take down? They're the Dread Duo, and they just happen to be his parents. As if trying to hide his identity wasn't hard enough, Joshua has started leaving a trail of exploding pencils and scorched handprints in his wake, and only Sophie, the new girl in town with a mysterious past, seems unsurprised.

Thirteen-year-old Emily Poe has been given the opportunity of a lifetime: A chance to attend the exclusive Audyn School in Manhattan. But to win the scholarship, she has to pass a test like nothing she’s ever experienced before: A nearly bare room, a set of strange clues, a locked door. And a mysterious organization - the Leopold Foundation - that’s watching her every move.

April had absolutely no intention of becoming the only person who knows that Gabriel Winterborne, the missing-and-presumed-dead billionaire, is actually living in the basement of Winterborne House, sharpening his swords and looking for vengeance. Now it’s up to April to keep him alive. But there’s only so much a 12-year-old girl can do, so April must turn to the other orphans for help. Together, they’ll have to unravel the riddle of a missing heir and a creepy legend, and find a secret key, before the only home they’ve ever known is lost to them forever.

Eva Evergreen is determined to earn the rank of Novice Witch before her 13th birthday. If she doesn't, she'll lose her magic forever. For most young witches and wizards, it's a simple enough test: One: Help your town, do good all around. Two: Live there for one moon, don't leave too soon. Three: Fly home by broomstick, the easiest of tricks. The only problem? Eva only has a pinch of magic. She summons heads of cabbage instead of flowers and gets a sunburn instead of calling down rain. And to add insult to injury, whenever she overuses her magic, she falls asleep.

Mimi is not thrilled to be spending her summer in Karachi, Pakistan, with grandparents she’s never met. Secretly, she wishes to find her long-absent father, and plans to write to him in her beautiful new journal. The cook's daughter, Sakina, still hasn't told her parents that she'll be accepted to school only if she can improve her English test score - but then, how could her family possibly afford to lose the money she earns working with her Abba in a rich family's kitchen?

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.

It is the morning of the reaping that will kick off the 10th annual Hunger Games. In the Capitol, 18-year-old Coriolanus Snow is preparing for his one shot at glory as a mentor in the Games. The once-mighty house of Snow has fallen on hard times, its fate hanging on the slender chance that Coriolanus will be able to out charm, outwit, and outmaneuver his fellow students to mentor the winning tribute. The odds are against him. He’s been given the humiliating assignment of mentoring the female tribute from District 12, the lowest of the low.

What is more real? A world we are born into or one we create for ourselves? Legendary creator, master storyteller, and cultural icon Stan Lee sets off into a new universe in search of answers to some of the most pressing questions of our time! The only question left: Will you join him on this journey?

Ryland Grace is the sole survivor on a desperate, last-chance mission - and if he fails, humanity and the Earth itself will perish. Except that right now, he doesn't know that. He can't even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions of miles from home, with nothing but two corpses for company.

Eleven-year-old Amelia Ashford—Millie to her friends (if she had any, that is)—doesn't realize just how much adventure awaits her when she's given the opportunity of a lifetime: to spend the night in Amelia Earhart's childhood home with five other girls. Make that five strangers. Once at Amelia's house in Atchison, Kansas, Millie stumbles upon a display of Amelia's famous flight goggles. She can't believe her good luck, since they're about to be relocated to a fancy museum in DC. But her luck changes quickly when the goggles disappear, and Millie was the last to see them.

There are three rules in Black River Falls: Don’t break curfew unless you want the monsters to find you. Don’t ask questions, no matter what. And when someone goes missing, don’t go looking. Joey Barnes obeyed those rules, until the day her mother vanished without a trace. She’s spent two years secretly hunting for clues, and she’s discovered plenty of things that don’t make sense, even for Black River Falls.

Sara Martinez is a hacker. She recently broke into the New York City foster care system to expose her foster parents as cheats and lawbreakers. However, instead of being hailed as a hero, Sara finds herself facing years in a juvenile detention facility and banned from using computers for the same stretch of time. Enter Mother, a British spy who not only gets Sara released from jail but also offers her a chance to make a home for herself within a secret MI5 agency. Operating out of a base in Scotland, the City Spies are five kids from various parts of the world.

Coke and Pepsi McDonald didn’t want to jump off a cliff. They didn't want to get hit by poisoned darts from blowguns either. And they certainly don't want to get locked in their burning school, thrown into a pit at the top of a sand dune, or drowned in a vat of liquefied Spam. But what are you supposed to do when you’re being chased across the country by your insane health teacher and two guys in bowler hats who are trying to kill you? One thing's for sure, it'll be a snap for Coke and Pep to write their essays on "How I Spent My Summer Vacation."

Herself a biologist, Julie E. Czerneda has earned a reputation in science fiction circles for her ability to create beautifully crafted, imaginative, yet believably realized alien races. In Survival, the first novel in her new series, Species Imperative, she draws upon this talent to build races, characters, and a universe which will draw listeners into a magnificent tale of interstellar intrigue, as an Earth scientist is caught up in a terrifying interspecies conflict.

At the turn of the 22nd century, scientists make a breakthrough in human spaceflight. Through a revolutionary method known as somaforming, astronauts can survive in hostile environments off Earth using synthetic biological supplementations. With the fragility of the body no longer a limiting factor, human beings are at last able to journey to neighboring exoplanets long known to harbor life. A team of these explorers, Ariadne O’Neill and her three crewmates, are hard at work in a planetary system 15 light-years from Sol, on a mission to ecologically survey four habitable worlds.

Cities all around the world reported strange alien vessels descending. Some saw them as the heralds of a new age; others fired everything they had at them. All were taken as the beams lashed down and drew them into the sky. Dean was left behind, seemingly the last man on Earth. A trail of clues left by his dead wife guides Dean on a perilous journey across America and beyond to learn the truth behind the mysterious ships and save humanity from its doom.

For Meredith Gale, ending her life seems like her only choice, and that choice is the reason she’s dangling by her fingertips from a bridge high above the freezing water of the San Francisco Bay. But someone or some thing has other plans for Meredith, and as her fingers slip from the cold steel of the bridge, a disembodied voice asks her a simple question: “Candidate 13: Do you wish to be saved?” Realizing her mistake too late, Meredith screams “Yes!” and instantly finds herself transported to a mysterious island, alongside hundreds of other Candidates like her.

Less than 60 kids awaken on a distant planet. The colony ship they arrived on is aflame. The rest of their contingent is dead. They've only received half their training, and they are being asked to conquer an entire planet. Before they can, however, they must first survive each other.

Alec works in the Detroit Overseer-factories, building a mysterious alien device. When three strangers appear, he's provided an opportunity to escape after years of servitude. Cole, a Freeborn loner, encounters Lina after her village is destroyed by the alien Occupation. Together, they make the arduous journey to a fabled safe-zone, trying to stay one step ahead of the enemy drones on their trail. Dex is a Hunter, working for the Occupation to track down escaped factory slaves, or Roamers, at all costs. But his latest hunt uncovers a massive secret.

Liam Saunders-Chang is one of the last humans left on Mars. The son of two scientists who have been racing against time to create technology vital to humanity's survival, Liam, along with his friend Phoebe, will be on the last starliner to depart before Mars, like Earth before it, is destroyed. Or so he thinks. Because before this day is over, Liam and Phoebe will make a series of profound discoveries about the nature of time and space and find out that the human race is just one of many in our universe locked in a dangerous struggle for survival.

When half of mankind revolts and demands more opportunity, those at the top decide on a compromise: They will build the first colony ships and allow the rest to discover new worlds and start over. Twelve ships are built. The first is called the Orion. Many are eager to go, but only 100,000 are chosen for each vessel. Far from Earth, a new life awaits, and it promises the prosperity they've always wanted. But still, resistance stirs.

Paleontologist Brandon Thackery and his rival, Miles "Klicks" Jordan, fulfill a dinosaur lover's dream with history's first time-travel jaunt to the late Mesozoic. Hoping to solve the extinction mystery, they find Earth's gravity is only half its 21st-century value and dinosaurs that behave very strangely. Could the slimy blue creatures from Mars have something to do with both?

For generations, a nameless man has been passed down through Cane's family - one who never seems to age, remembers the stories of old, and knows the depths of men's hearts. On the outside, Cane's family appeared to be simple fishermen. Yet when he turned 18 and his life entwined with the nameless man forever, Cane learned they were far more than he could imagine. And as they are hunted while pursuing hidden secrets, Cane's life enters turmoil, where nothing is clear.

Senior co-administrator of the Norcoast Salmon Research Facility, Dr. Mackenzie Connor was a biologist who studied the spawning habits of salmon. Then, last season, just as she and Dr. Emily Mamani were starting their research, they were interrupted by the arrival of Brymm, the first Dhryn to set foot on Earth. And suddenly everything changed for Mac, Emily, Brymn, the human race, and all the member races of the Interspecies Union. Base was attacked, Em was kidnapped by the mysterious Ro, and Mac and brymn had to flee for their lives to the Dhryn home world.

A wicked snowstorm had blown in from the north and the roads were a mess. Recently split from his one-time girlfriend, there was now nothing holding Cameron Decker here in the little backwater mountain town of Larksburg Stand. Time to get back to college, back to Stanford. Seeing a guy knee-deep in slush at the side of the road, he pulled to the curb and waved him over. The guy smacked his head getting in - knocked his watch cap askew. Only then did Cameron notice - noticed that the individual couldn't possibly be human. Cameron decided to help his stranded passenger - a decision he'd soon come to regret. Along with his rust-bucket of a pickup truck, he was soon heading deep into space aboard an interstellar spacecraft. After the vessel crash-landed onto an alien world, he would now have to contend with a murderous droid and a slew of strange alien life forms.

Twelve-year-old Gordy Stitser is one of the few people who knows the truth about the secret society of potion masters, because not only is Gordy's mom on the Board of Ruling Elixirists Worldwide (BREW), but she has also been training Gordy in the art of potion-making. Gordy is a natural, and every day he sneaks down to the basement lab to invent new potions using exotic ingredients like fire ant eggs, porcupine quills, and Bosnian tickling juice. One afternoon, Gordy receives a mysterious package containing an extremely rare potion known as "The Eternity Elixir."

Joey Harker isn't a hero. In fact, he's the kind of guy who gets lost in his own house. But then one day, Joey gets really lost. He walks straight out of his world and into another dimension. Joey's walk between the worlds makes him prey to two terrible forces: armies of magic and science who will do anything to harness his power to travel between dimensions.

Cruz Coronado leaves his tranquil home in Hawaii to join 23 talented kids from around the globe to train at the Explorer Academy with the world's leading scientists to become the next generation of great explorers. But for Cruz, there's more at stake. No sooner has he arrived at the Academy than he discovers that his family has a mysterious past with the organization that could jeopardize his future. In the midst of codebreaking and cool classes, new friends, and augmented reality expeditions, Cruz must tackle the biggest question of all: Who is out to get him, and why?

Eve looks like an ordinary 12-year-old girl, but there’s nothing ordinary about her. She has no last name. No parents or guardian. She’s on the run from a dangerous and secretive organization that will stop at nothing to track her down. And most astonishing of all: she’s a robot, a product of Eden Laboratories. When Eve discovers the truth, she realizes everything she thought she knew about herself is a lie. Eve manages to escape, fleeing the lab, the only home she’s ever known.

Holly Ash is good actor. Just one downside: Most of the people she’s acting with have no idea they’re a part of her fiction. One that has been carefully constructed by the secretive company that Holly works for, known as D.O.P.L. Every assignment is a new role, a new name, a completely new self. Her newest role is “Margot” and her newest target: a boy her age named Will Aldrich.

Zach should’ve outgrown his imaginary friend by now. He knows this. He’s 11, long past the days when kids are supposed to go on epic make-believe adventures with their invisible friends. But after the death of his father five years ago, all Zach wanted was an escape from the real world. So his imaginary friend, Shovel, hasn’t faded away like the other kids’ have. Their imaginary friendship grew stronger. But now Zach’s in middle school, and things are getting awkward. His best friend ditched him for a cooler crowd.

Most days, Sarya doesn't feel like the most terrifying creature in the galaxy. Most days, she's got other things on her mind. Like hiding her identity among the hundreds of alien species roaming the corridors of Watertower Station. Or making sure her adoptive mother doesn't casually eviscerate one of their neighbors. Again. And most days, she can almost accept that she'll never know the truth - that she'll never know why humanity was deemed too dangerous to exist.

Liam Chapman cannot believe his good fortune. He just bought a real, working time machine at a garage sale for $3. Sure, it’s labeled “World’s Worst Time Machine,” but how bad could it be? The time machine, as it turns out, is so much worse than Liam could have imagined. First, it summons Thomas Edison, but not that Thomas Edison. This Thomas Edison is a 10-year-old aspiring gangster from 1933 who demands to be called “Tommy Twinkles” and is also very interested in robbing a bank of the future.