Young Adult Fiction Mystery

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.

For many of those who have been left behind, the sudden disappearance of millions of people throughout the world is completely baffling. For Judd, Vicki, Lionel, and Ryan - four kids who have lost their families - the explanation couldn’t be clearer: the faithful have been taken to heaven in fulfillment of Biblical prophecy. With no one to turn to but each other, the four young people have banded together, finding strength in their faith. So when Ryan discovers some unbelievable news regarding Lionel’s uncle....

Marlow's just a regular geeky college freshman with little to no experience with girls, so when he has a semi-flirtatious chat with a cute girl online, it's almost more than his nerves can handle. Then the girl is brutally murdered. Or is she? Marlow finds himself teamed up with intelligent and savvy Sage Farrell, a girl so far out of his league he feels blinded in her presence. Together they work to find the identity of @gingerbreadman. Can they stop the killer before he strikes IRL?

Thanks to its unique combination of human and vampire residents, Morganville, Texas, is a small college town with big-time problems. When student Claire Danvers gets the chance to experience life on the outside, she takes it. But Morganville isn't the only town with vampire trouble. Claire never thought she'd leave Morganville, but when she gets accepted into the graduate program at MIT, she can't pass up the opportunity. Saying good-bye to her friends is bittersweet, especially since things are still raw and unsettled between Claire and her boyfriend, Shane.

Gabriel has always had his brothers to rely on, especially his twin, Nick. But when an arsonist starts wreaking havoc on their town, all the signs point to Gabriel...except he's not doing it. And no one seems to believe him. No one but a shy sophomore named Layne, a brainiac who dresses in turtlenecks and jeans...and keeps him totally off balance.

It's been eight months since Mickey Bolitar witnessed the shocking, tragic death of his father. Eight months of lies, dark secrets, and unanswered questions. While he desperately wants answers, Mickey's sophomore year of high school brings on a whole new set of troubles. Spoon is in the hospital, Rachel won't tell him where he stands, his basketball teammates hate him... and then there's Ema's surprise announcement: She has an online boyfriend, and he's vanished.

Having defeated the monstrous threat that nearly destroyed the peculiar world, Jacob Portman is back where his story began, in Florida. Except now Miss Peregrine, Emma, and their peculiar friends are with him, and doing their best to blend in. But carefree days of beach visits and normalling lessons are soon interrupted by a discovery - a subterranean bunker that belonged to Jacob’s grandfather, Abe.

In the beginning, Isaac West stole to give his younger sister Janelle little things: a new sweater, a scarf, just so she looked less like a charity case whose mother spent money on booze and more like the prep school girls he'd see on his way to school. But when Isaac's petty theft lands him in juvie, he's cut off from helping Janelle. Friendless in a dangerous world of gangs and violent offenders, he must watch his every step.

It’s the 1950s when Johnny Dixon’s mother dies, his father goes to fight in the Korean War, and he goes to live with his grandparents. Although life in a new house is strange, Johnny’s “Grampa” listens to his favorite ballgames, takes him on long walks, and tells him stories of the strange mysteries that lurk in the shadows. Best of all, he’s friends with Professor Childermass, an eccentric academic who’s about to take Johnny on the adventure of a lifetime.

Four years ago, Brynn left Saint Ambrose School following the shocking murder of her favorite teacher—a story that made headlines after the teacher’s body was found by three Saint Ambrose students in the woods behind their school. The case was never solved. Now that Brynn is moving home and starting her dream internship at a true-crime show, she’s determined to find out what really happened.

When my parents were banished from Wolf City before I was born, I thought there was no way I would ever live in a pack again. Cuffed, with my shifter magic bound, I was forced to go to school with witches and vampires in order to keep my true nature from coming out. Then I met him. Sawyer Hudson. The Alpha's son was visiting the Delphi College for Magically Banished Youth and spotted me.

After 10 years of living on an isolated, tech-free ranch with her mother, 16-year-old Hedda is going back to the world of the Glare - her word for cell phones, computers, and tablets. Hedda was taught to be afraid of technology, afraid that it would get inside her mind and hurt her. But now she’s going to stay with her dad in California, where she was born, and she’s finally ready to be normal. She’s not going to go “off-kilter,” like her mom says she did when she was just a little kid. Once she arrives, Hedda finally feels like she’s in control.

Life is hard. Change is difficult. But adjusting to being a ghost? Well, that is just darn near impossible. And Bridget Sway is struggling. It's not just the job, the uniform, the housemates, the rules, the community service. It's everything. And now she's facing a week-long group assessment to evaluate her adjustment.As if that isn't bad enough, some inconsiderate soul has shoved another dead ghost in her locker. Things are looking bleak for Bridget. If she fails the assessment, she'll be "re-educated."

Nell Martin is moving again, this time to the Winslow Grand Hotel, built in 1878. As Nell is settling in, strange things begin to happen. Doors lock of their own accord, writing appears on bathroom walls - and most horrifying of all - visions of a dead boy permeate her waking life. Thinking it was her mind playing tricks on her, she soon finds the past and the present colliding as she learns horrific details of a murder that happened at the hotel in 1907 involving a girl named Lea.

Milly, Aubrey, and Jonah Story are cousins, but they barely know each another, and they've never even met their grandmother. Rich and reclusive, she disinherited their parents before they were born. So when they each receive a letter inviting them to work at her island resort for the summer, they're surprised...and curious.

The Corrupt Lord of the Ice has been rejected. King Uthar is seeking to kill him once and for all. But Darthor has retreated to the Frozen Continent with his forces. Lasgol and his friends are making every effort to pass their third year of instruction, where the tests change from practical competitions to real missions and where they risk their lives. Conflicts, rivalries, and love will emerge more strongly than ever. Egil and Lasgol will discover the truth about the king's secret and the identity of the real enemy. They will choose sides and try to persuade their teammates.

Some time has passed since the inimitable quartet of Reynie, Sticky, Kate, and Constance have had a mission together. But with the arrival of a new Society member - and a new threat - they must reunite to face dilemmas more dangerous than ever before, including the villainous Mr. Curtain and a telepathic enemy tracking their every move, not to mention a dramatically preteen Constance. In its triumphant return, the Society encounters all new challenges, but the series' trademark sly humor, sweet camaraderie, hairsbreadth escapes, and mind-bending puzzles are all as engaging as ever.

After a string of brutal murders in Las Vegas, Cassie Hobbes and the Naturals are called in to investigate. But even with the team's unique profiling talents, these murders seem baffling: unlike many serial killers, this one uses different methods every time. All of the victims were killed in public, yet the killer does not show up on any security feed. And each victim has a string of numbers tattooed on their wrist. Hidden in the numbers is a code—and the closer the Naturals come to unraveling the mystery, the more perilous the case becomes.

In 1982, two teenagers - serial killer survivor Emma Lewis and US Marshal candidate Travis Bell - are recruited by the FBI to interview convicted juvenile killers and provide insight and advice on cold cases. From the start, Emma and Travis develop a quick friendship, gaining information from juvenile murderers that even the FBI can't crack. But when the team is called in to give advice on an active case - a serial killer who exclusively hunts teenagers - things begin to unravel.

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.