Teen Mystery

The Cahill family has a secret. For five hundred years, they have guarded the 39 Clues - thirty-nine ingredients in a serum that transforms whomever takes it into the most powerful person on earth. If the serum got into the wrong hands, the disaster would rock the world. So certain Cahills have always made it their mission to keep the serum safe, buried, locked away. Until now. Thirteen-year-old Dan Cahill and his older sister, Amy, are the latest guardians of the Clues. They think they've done everything right, but a tiny mistake leads to catastrophe.

To celebrate her 14th birthday, Sammy’s newly found, long-lost father takes her and best friend Marissa on a cruise. As Sammy navigates her feelings about this new relationship, she and Marissa become involved in another family’s bizarre drama which includes the mysterious disappearance of the wealthy matriarch and suspicious activity by the greedy heirs.

The Black Death has returned to London, spreading disease and fear through town. A mysterious prophet predicts the city's ultimate doom - until an unknown apothecary arrives with a cure that actually works. Christopher's Blackthorn shop is chosen to prepare the remedy. But when an assassin threatens the apothecary's life, Christopher and his faithful friend, Tom, are back to hunting down the truth, risking their lives to untangle the heart of a dark conspiracy.

Graham Salisbury has received numerous high-profile accolades from the ALA, VOYA, and several parent organizations. A Junior Library Guild Premier election, Night of the Howling Dogs is a rousing adventure set in Hawaii. On a Boy Scout trip, Dylan is looking forward to camping out at the foot of the Pu¹u Kapukapu volcano. But when an earthquake strikes, Dylan is forced to team up with a bully named Louie on a daring mission to rescue many of their scattered comrades.

A windswept private island off the coast of Massachusetts. A hungry ocean, churning with secrets and sorrow. A fiery, addicted heiress. An irresistible, unpredictable boy. A summer of unforgivable betrayal and terrible mistakes. Welcome back to the Sinclair family. They were always liars.

Leon is a small-time crook who's ridden his luck for three decades. When he starts splashing big money around, the cops are desperate to know where it came from. They call in Cherub, a secret organisation with one essential advantage: even experienced criminals never suspect that children are spying on them. James' latest mission looks routine, but the plot he begins to unravel isn't what anyone expected. And the only person who might know the truth is a reclusive 18-year-old boy - a boy fell to his death 13 months earlier.

Emily’s been shipped off to Iowa to live with her uber-conservative cousins. Aria’s boyfriend is behind bars—because of her. Spencer’s afraid she was involved in Ali’s murder. But Hanna’s fate is far worse: She’s clinging to life in the hospital because she knew too much.

Nancy, Bess, and George are excited to attend Oracle College's annual Greek mythology themed gala. But the festive sprit turns troubled when a student falls from the balcony mid-speech. Nancy's investigations quickly reveal this was a case of collegiate sabotage. Can she find the campus menace before someone else gets hurt?

After Del’s death, Jimi wants to pick up the pieces of her life and move on. But she’s become a public figure in her defense of chimeras, and she can’t quite shake the spotlight—or her suspicion that she’s being followed. When her friend Dr. Guzman, a chimera sympathizer, is arrested for the murder of a chimera wearing a strange medical bracelet, Jimi does some digging—and eventually discovers that Howard Wells, the venal businessman and proponent of the Genetic Heritage Act, is supporting a hospital that ostensibly provides healthcare for chimeras.

The Hardy brothers and Frank’s new girlfriend, Jones, are attending a local comic book convention on the shore. They meet up with Jones’ friend Harper, a fellow comics super fan, outside the convention. The four of them spend hours running from booth to booth and end the perfect day with pizza at Harper’s short-term rental apartment. Things don’t stay so perfect, though. On the way home, Jones realizes she switched phones with Harper by accident and she's getting some really scary texts. They show up at the apartment the next day to find it totally destroyed and Harper missing.

In Gold Coast, Long Island, everything from the expensive downtown shops to the manicured beaches, to the pressed uniforms of Jill Newman and her friends, looks perfect. But as Jill found out three years ago, nothing is as it seems. Freshman year Jill's best friend, the brilliant, dazzling Shaila Arnold, was killed by her boyfriend. After that dark night on the beach, Graham confessed, the case was closed, and Jill tried to move on.

Maddie, Célim, Juliette et Sasha s'apprêtent à vivre une journée en apparence normale. Mais pour eux, tout vas basculer, brutalement. Personne n'est prêt pour un tel cataclysme. Ils se voient confier une quête de la plus haute importance : le sort de l'humanité sera entre leurs mains. Ils devront affronter des créatures maléfiques, braver des forces surnaturelles et surtout, dépasser leurs peurs et rester unis, quoi qu'il en coûte.

Wicca has changed Morgan’s life. She’s lost old friends, made new ones, and discovered her heritage. She also found love and betrayal. But there’s so much more to learn. She knows Wicca can be used for good or for evil. The hard part is knowing which is which.

For Tess Kendrick, a junior at the elite Hardwicke School in Washington, DC, fixing runs in the family. But Tess has another legacy, too, one that involves power and the making of political dynasties. When Tess is asked to run a classmate's campaign for student council, she agrees. But when the candidates are children of politicians, even a high school election can involve life-shattering secrets. Meanwhile, Tess' guardian has also taken on an impossible case, as a terrorist attack calls into doubt who can - and cannot - be trusted on Capitol Hill.

Last summer, Alice Ogilvie’s basketball-star boyfriend Steve dumped her. Then she disappeared for five days. She's not talking, so where she went and what happened to her is the biggest mystery in Castle Cove. Or it was, at least. But now, another one of Steve’s girlfriends has vanished: Brooke Donovan, Alice’s ex-best friend. Enter Iris Adams, Alice’s tutor who has her own reasons for wanting to disappear. The police are convinced Steve is the culprit, but Alice isn’t so sure, and with Iris on her side, she just might be able to prove her theory.

Rosie's led a charmed life with her loving dad, who runs the town donut shop. It's true her mother abandoned them when Rosie was just a baby, but her dad's all she's ever needed. But now that her father's had a stroke, Rosie lives with her tough-as-nails grandfather. And her beloved dog, Gloaty Gus, has just gone missing. Rosie's determined to find him. With the help of a new friend and her own determination, she'll follow the trail anywhere...no matter where it leads. If she doesn't drive the whole world crazy in the meantime.

When 15-year-old Janie Johnson sees her own face in the missing children box on a milk carton, her world begins to blur. Was she kidnapped when she was a baby? Who are her parents? And who are Mr. and Mrs. Johnson? Janie’s search for the answers will lead her back twelve years into memories of another house, another family, another life. Her questions threaten to destroy the love she feels for her parents and the security they have given her. But it is a search she cannot ignore. The Face on the Milk Carton has been extremely popular ever since it was first released.

When Marina Chan ran from her old life, she brought nothing with her—not even her real name. Now she lives in fear of her past being discovered. But when her online gaming team is offered a tour of their favorite game company, Marina can’t resist accepting, even though she knows it might put her fake identity at risk. Then the creator of the game is murdered during their tour. The killer plans to frame Marina and her friends for the murder unless they win four rounds of a dangerous game.

Frank and Joe are back on Black Bear Mountain, the scene of a previous wilderness adventure and mind-bending mystery. This time, the brothers are checking in on Dr. K, a friend they made during their first trip. Dr. K is a fan of living off the grid, but he’s been MIA long enough to cause worry in the small mountain town. And so the teenage detectives Black Bear Mountain relied on before have been called in to help once again.

Life has been crazy since Tessa McCaide moved to Texas. She's gone from being a normal-ish girl with visions to a superpowered werewolf. She's fought off vampires and broken a nearly unbreakable curse. And she's got a hot mate, Dastien Laurent, to keep her busy. Things are looking up until the full moon ceremony rolls around. Before Tessa can strengthen her bond with Dastien, the local coven crashes the gates, demanding that Tessa - their heir apparent - be returned. If the pack wants to avoid a war with the witches, handing Tessa over is the only option.