Teen Mystery

School may be out for summer, but top-secret training continues for aspiring spy Ben Ripley - and so does the danger. Ben Ripley is a middle schooler whose school is not exactly average - he's spent the last year training to be a top-level spy and dodging all sorts of associated danger. So now that summer's finally here, Ben's ready to have some fun and relax. Except that's not going to happen, because a spy-in-training's work is never done.

Her parents are spies. To save her from one of their enemies, they gave her to the Ghost Agent Initiative. Thus, the government became her mother, father, and guardian. Now, it’s ready to be teacher as well. Cassandra is happy to learn the survival skills, but she’s less thrilled with the idea of becoming a killer.

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.

High school sleuths P.C. Hawke and Mackenzie Riggs quickly regret their decision to take a difficult calculus class from a tough instructor at Columbia University. But even though she's mean, Professor Dunaway certainly seems an unlikely candidate for murder. Though there are plenty of suspects, a lot of things about this case just don't add up.

Pulitzer Prize winner Paul Zindel delights even the most reluctant listeners with his thrilling P.C. Hawke Mysteries. Everyone is upset when P.C.'s junior class trip ends with classmate Timmy Warner plunging to his death over a 300-foot waterfall. So when Timmy's mom exhibits some strange behavior at the funeral, P.C. and his friend Mackenzie just have to investigate. What they don't expect is that the trail of clues will lead them to Los Angeles-and to a surfer who's a dead ringer for their dead classmate!

Together with her parabatai, Julian Blackthorn, Emma must learn to trust her head and her heart as she investigates a demonic plot that stretches across Los Angeles, from the Sunset Strip to the enchanted sea that pounds the beaches of Santa Monica. If only her heart didn't lead her in treacherous directions....

In the magical realm of Mystic City, Aria Rose, daughter to one of the city's ruling families, is betrothed to Thomas Foster, the son of her parents' enemies. With the unwanted marriage drawing closer, Aria encounters a rebel mystic from the Depths - and begins to question everything she knows about her world.

The lovable underdog Lewis Barnavelt and his best friend, Rose Rita, are at it again - investigating the curious (and possibly supernatural?) goings-on in their town of New Zebedee. They get more than they bargained for when a new family moves into the Hawaii House, one of the oddest-looking houses in town, and Lewis and Rose Rita are drawn into a mystery involving forces far beyond the shores of their imagination. Why are there strange drumbeats emanating from the top floor of the Hawaii House? And why is Lewis having dreams about Pele, the Hawaiian goddess of fire?

A trip to the French Riviera should be a nice vacation for high school super-sleuth P.C. Hawke and his best friend Mackenzie. But when a woman is murdered at their hotel, P.C. and Mac can't just sit around and wait for the cops solve the crime.

A ton of copycat gossip apps have popped up since Simon died, but in the year since the Bayview four were cleared of his shocking death, no one's been able to fill the gossip void quite like he could. The problem is no one has the facts. Until now. This time it's not an app, though - it's a game. Truth or Dare. Phoebe's the first target. If you choose not to play, it's a truth. And hers is dark. Then comes Maeve, and she should know better - always choose the dare. But by the time Knox is about to be tagged, things have gotten dangerous.

It's been two years since John Spencer and his father were shipwrecked and nearly murdered by unscrupulous scavengers. Now the Spencers have a new ship, the Dragon, and 16-year-old John is elated to be making the new schooner's maiden voyage to London. But not long out to sea, John realizes that the captain and crew of the Dragon are not who they pretended to be.

It is freezing in the churchyard, even before the dead arrive. Every year, Blue Sargent stands next to her clairvoyant mother as the soon-to-be dead walk past. Blue herself never sees them - not until this year, when a boy emerges from the dark and speaks directly to her. His name is Gansey, and Blue soon discovers that he is a rich student at Aglionby, the local private school. Blue has a policy of staying away from Aglionby boys. Known as Raven Boys, they can only mean trouble. But Blue is drawn to Gansey, in a way she can't entirely explain.

The New York Times best-selling Mortal Instruments continues - and so do the thrills and danger for Jace, Clary, and Simon. Can the lost be reclaimed? What price is too high to pay for love? Who can be trusted when sin and salvation collide? Darkness threatens to claim the Shadowhunters in the harrowing fifth book of the Mortal Instruments series.

Lewis' hopes for a peaceful summer vacation are shattered as one accident after another plagues him. Is all his bad luck really just a coincidence? Or does it have something to do with the mysterious hooded figure he keeps seeing?

In Where Sleeping Girls Lie—a YA contemporary mystery by Faridah Àbíké-Íyímídé, the New York Times-bestselling author of Ace of Spades—a girl new to boarding school discovers dark secrets and coverups after her roommate disappears.

Though forty miles away, Duston Heights is not safe from the flu that’s raging through Boston. When Johnny Dixon’s grandmother falls ill, he’s sent to live with his neighbor to avoid infection. So many locals are getting sick that school is canceled for a week, and the reclusive Dr. Abram Ashburn comes out of retirement to make house calls. After seeing a scary vision of his bedridden grandmother outside of a window, Johnny starts to feel on edge. Then he and his best friend find what looks to be a weird map of a cemetery in Dr. Ashburn’s house.

Emilia is reeling from the shocking discovery that her twin sister, Vittoria, is alive. But before she faces the demons of her past, Emilia yearns to claim her king, the seductive Prince of Wrath, in the flesh. Emilia doesn’t simply desire his body, she wants his heart and soul—but that’s something the enigmatic demon can’t promise her. When a high-ranking member of House Greed is assassinated, Emilia and Wrath are drawn to the rival demon court. Damning evidence points to Vittoria as the murderer, and she’s quickly declared an enemy of the Seven Circles.

November is usually quiet in Holcomb, Kansas, but in 1959, the town is shattered by the quadruple murder of the Clutter family. Suspicion falls on Nancy Clutter's boyfriend, Bobby Rupp, the last one to see them alive. New Yorker Carly Fleming, new to the small Midwestern town, is an outsider. She tutored Nancy, and (in private, at least) they were close. Carly and Bobby were the only ones who saw that Nancy was always performing, and that she was cracking under the pressure of being Holcomb's golden girl.

When Cassie Hobbes joined the FBI's Naturals program, she had one goal: uncover the truth about her mother's murder. But now, everything Cassie thought she knew about what happened that night has been called into question. Her mother is alive, and the people holding her captive are more powerful—and dangerous—than anything the Naturals have faced so far. As Cassie and the team work to uncover the secrets of a group that has been killing in secret for generations, they find themselves racing a ticking clock.

Nicholas Flamel is the greatest Alchemyst to ever live. The records show that he died in 1418, but what if he's actually been making the elixir of life for centuries? The secrets to eternal life are hidden within the book he protects - the Book of Abraham the Mage. It's the most powerful book that has ever existed, and in the wrong hands, it will destroy the world. And that's exactly what Dr. John Dee plans to do when he steals it. There is one hope. If the prophecy is true, Sophie and Josh Newman have the power to save everyone. Now they just have to learn to use it.