United under a charismatic leader, every citizen of the American Union is required to get the Mark on their 13th birthday in order to gain the benefits of citizenship. The Mark is a tattoo that must be swiped by special scanners for everything from employment to transportation to shopping. It’s almost Logan Langly’s 13th birthday, and he knows he should be excited about getting the Mark, but he hasn’t been able to shake the feeling he’s being watched. Not since his sister went to get her Mark five years ago...and never came back.

Ben Ripley may only be in middle school, but he's already pegged his dream job: CIA or bust. Unfortunately for him, his personality doesn't exactly scream "secret agent". In fact Ben is so awkward, he can barely get to school and back without a mishap. Because of his innate nerdiness, Ben is not surprised when he is recruited for a magnet school with a focus on science - but he's entirely shocked to discover that the school is actually a front for a junior CIA academy.

A young lad awakens on an island, alone and brutally injured, with no memory of his past. Captain Declan Ross searched for riches that will free him and his headstrong daughter, Anne, from the piracy business forever. Bartholomew Thorne, an infamously ruthless pirate, seeks to destroy Ross and any who stand in his way of the legendary treasure hidden by a mysterious order of monks.

Rigby Thames, the new kid from England, builds a suspicious rock star-like following at Dresden High School a little too quickly. Even Archer’s best friend and confidant, Kara Windchil, seems taken in by the cool guy with the wild blond hair, which definitely rubs Archer the wrong way. Archer must face two foes in two worlds, but he cannot succeed alone. Archer sets off to find other dreamtreaders in a desperate attempt to defeat the enemy terrorizing his friends and family.

What if Nephilim - the children of angels and men - still walked the earth? And their very presence put the entire world in danger? In Spirit Fighter, Jonah and Eliza Stone learn that their mother is a Nephilim and that they have special powers as quarter-angels. When their mom is kidnapped by fallen angels, they must use those powers to save her. Along the way, they discover that there is a very real and dangerous war going on between good and evil and that God has a big part for them to play in that war.

High schooler Will Peterson and three friends journeyed to Central America to help rebuild a school. In a poor, secluded mountain village, they won the hearts of the local people with their energy and kindness. But in one sudden moment, everything went horribly wrong. A revolution swept the country. Now, guns and terror are everywhere—and Americans are being targeted as the first to die. Will and his friends have got to get out fast. But streets full of killers . . .hills patrolled by armies . . . and a jungle rife with danger stand between them and the border.

The difference in their uncanny eyes could not be easily discerned. In the rays of the setting sun, both Aravel's and Morlan's eyes appeared gold. In the pale moonlight...yellow. Seemingly the same. Such inscrutable likeness is the way of things with identical twins. But all who knew the two brothers well noted unmistakable differences, peculiarities more experienced than seen.

What was once the Western United States is now home to the Republic, a nation perpetually at war with its neighbors. Born into an elite family in one of the Republic's wealthiest districts, 15-year-old June is a prodigy being groomed for success in the Republic's highest military circles. Born into the slums, 15-year-old Day is the country's most wanted criminal. But his motives may not be as malicious as they seem. From very different worlds, June and Day have no reason to cross paths - until the day June's brother, Metias, is murdered and Day becomes the prime suspect.

The human race is all but extinct after a war with Partials - engineered organic beings identical to humans - has decimated the population. Reduced to only tens of thousands by RM, a weaponized virus to which only a fraction of humanity is immune, the survivors in North America have huddled together on Long Island while the Partials have mysteriously retreated. The threat of the Partials is still imminent, but, worse, no baby has been born immune to RM in more than a decade. Our time is running out.

Like his fellow lunarnauts - otherwise known as Moonies - living on Moon Base Alpha, twelve-year-old Dashiell Gibson is famous the world over for being one of the first humans to live on the moon. And he's bored out of his mind. Kids aren't allowed on the lunar surface, meaning they're trapped inside the tiny moon base with next to nothing to occupy their time - and the only other kid Dash's age spends all his time hooked into virtual reality games.

Natasha Romanoff is one of the world's most lethal assassins. Trained from a young age in the arts of death and deception, Natasha was given the title of Black Widow by Ivan Somodorov, her brutal teacher at the Red Room, Moscow's infamous academy for operatives.

"Go into the Red Zone. Go to Street Freaks," his father directs Ashton Collins before the vid feed goes suddenly silent. The Red Zone is the dangerous heart of mega-city Los Angeles; it is a world Ash is forbidden from and one he knows little about. But if he can find Street Freaks, the strangest of aid awaits - human and barely human alike. As Ash is hunted, he must unravel the mystery left behind by his father and discover his role in this new world.

Sixteen-year-old Jimi knows people change, but nothing could prepare her for what's about to happen to her best friend, Del. Del is obsessed with becoming a chimera: a person who pays back-alley geneticists, known as "genies", to illegally splice animal genes into their own. The resulting physical changes have scared lawmakers into drafting legislation declaring chimeras officially nonpersons, so when Del goes missing, Jimi is desperate to find him before he alters himself forever.

Marguerite Caine grew up surrounded by cutting-edge scientific theories, thanks to her brilliant physicist parents. Yet nothing is more astounding than her mother's latest invention - a device called the Firebird, which allows people to leap into alternate dimensions.

Sixteen-year-old Sasha Lawson has only ever known one small, ordinary life. When she was young, she loved her grandfather's stories of parallel worlds, inhabited by girls who looked like her but led totally different lives. Sasha never believed such worlds were real - until now, when she finds herself thrust into one against her will. To prevent imminent war, Sasha must slip into the life of an alternate version of herself, a princess who has vanished on the eve of her arranged marriage. If Sasha succeeds in fooling everyone, she will be returned home; if she fails, she'll be trapped in another girl's life forever.