Young Adult Mystery Thriller

Half-angel Trinity and her bonded gargoyle protector, Zayne, have been working with demons to stop the apocalypse while avoiding falling in love. The Harbinger is coming…but who or what is it? All of humankind may fall if Trinity and Zayne can’t win the race against time as sinister forces gather. As tensions rise, they must stay close together and patrol the DC streets at night, seeking signs of the Harbinger, an entity that is killing Wardens and demons with no seeming rhyme or reason.

Best-selling author and fan favorite Anthony Horowitz has built a huge following with his Alex Rider series. This time, Alex is up against a con man who wants to create the biggest catastrophe he can muster to profit through a disaster-relief charity. If Alex is going to stop a genetically engineered virus from sweeping across the country, he’ll have to brave gunfire, explosions, and dangerous mercenaries—then come face to face with the deadly mastermind.

Tamora Pierce brings readers another Tortall adventure! Alianne is the teenage daughter of the famed Alanna, the first lady knight in Tortall. Young Aly follows in the quieter footsteps of her father, however, delighting in the art of spying. When she is captured and sold as a slave to an exiled royal family in the faraway Copper Islands, it is this skill that makes a difference in a world filled with political intrigue, murderous conspiracy, and warring gods.

When Malia Kwan exhibits unusual abilities, government agents show up at her home to apprehend her and her twin brother, Jaden - and all hell breaks loose. After their parents are killed, Jaden and Malia flee into the night, becoming fugitives. Before long, they discover their true identities are tied to the lost city of Atlantis - and to the origins of humanity itself. And now a threat emerges that could wipe out the entire human race - unless Jaden and Malia can stop it!

Maddie and Logan were torn apart by a kidnapping attempt when they were young. They were only kids - Logan's dad was POTUS and Maddie's father was the Secret Service agent meant to guard him. The kidnappers were stopped - but Maddie was whisked off to Alaska with her father, for safety. Maddie and Logan had been inseparable...but then she never heard from him again. Now it's a few years later. Maggie's a teenager, used to living a solitary life with her father. It's quiet - until Logan is sent to join them.

Robert Langdon, professor of religious symbology at Harvard, is in Paris to give a lecture. At the reception that follows, he is scheduled to meet with a revered curator from the world-famous Louvre museum. But the curator never shows up, and later that night Langdon is awakened by authorities and told that the curator has been found dead. He is then taken to the Louvre - the scene of the crime - where he finds out that baffling clues have been left behind.

Mr. Griffin is the least-liked teacher at Del Norte High School. It’s not just because he is the toughest grader in the school, or won’t accept late work for any reason. He even fails seniors and makes them beg to get back in his class … the next year. This time, he’s humiliated the wrong students. When a group of classmates decide to kidnap him, the plan is only to scare their English teacher—to make him grovel and give him a taste of his own medicine. They don’t intend to kill Mr. Griffin.

When an MI5 operation goes disastrously wrong, James Adams needs all of his skills to get out of Russia alive. Meanwhile, his sister Lauren is on her first solo mission, trying to uncover a brutal human trafficking operation. And when James does get home, he finds that his nightmare is just beginning....

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....

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.

Kathryn Miller Haines’ debut Iris Anderson mystery received considerable buzz for its stellar 15-year-old heroine and engrossing 1940s period details. With her father back from the war, Iris is eager to help him with his private eye business—especially since his mobility is limited thanks to a missing leg. Now with a case involving a boy she knows from school to investigate, Iris leaps into action and soon finds herself in the middle of a harrowing adventure.

Que feriez-vous si vous receviez l'héritage d'un inconnu milliardaire convoité par ses sulfureux petits-fils ? Du jour au lendemain, Avery Grambs est passée de lycéenne fauchée à milliardaire. Elle évolue désormais dans un monde foisonnant d'énigmes, de richesses infinies, de danger et de secrets de famille, et bénéficie d'une protection rapprochée. Mais pourquoi Tobias Hawthorne, le milliardaire excentrique, a-t-il décidé de lui léguer toute sa fortune au détriment de ses propres filles et de ses quatre petits-fils ?

Spencer covets her sister's boyfriend. Aria's fantasizing about her English teacher. Emily's crushing on the new girl at school. And Hanna uses some ugly tricks to stay beautiful. But they've all kept an even bigger secret since their friend Alison vanished.

ShadowClan has chosen Tigerclaw as their new leader, and Fireheart fears that this old enemy still harbors dark plans for vengeance on his former Clan. A mysterious threat has invaded the forest, placing every cat's life in peril. And Fireheart's beloved leader has turned her back on their warrior ancestors. Fireheart can't help but wonder if she's right - has StarClan abandoned them forever?

Quinn Maybrook and her father have moved to tiny, boring Kettle Springs, to find a fresh start. But what they don’t know is that ever since the Baypen Corn Syrup Factory shut down, Kettle Springs has cracked in half. On one side are the adults, who are desperate to make Kettle Springs great again, and on the other are the kids, who want to have fun, make prank videos, and get out of Kettle Springs as quick as they can.

She is the last of her kind...It is not a peaceful time in the Dells. In King City, the young King Nash is clinging to the throne, while rebel lords in the north and south build armies to unseat him. War is coming. And the mountains and forest are filled with spies and thieves. This is where Fire lives, a girl whose beauty is impossibly irresistible and who can control the minds of everyone around her.

After a tsunami causes massive devastation to a tropical island, its governor sends in the bulldozers to knock down villages, replacing them with luxury hotels. Guarding the corrupt governor's family isn't James Adams' idea of the perfect mission, especially as it's going to be his last as a Cherub agent. And then retired colleague Kyle Blueman comes up with an unofficial and highly dangerous plan of his own.

It felt like only minutes had passed when I woke up with a start. I glanced over at the digital clock I had placed on the nightstand; it read 3:19 a.m. I had been fast asleep for hours - what had woken me up? I raised my head to look around the room, and my heart leaped into my throat. There, standing at the foot of my bed, was a figure, looming in the darkness.

A Clue found in Book 3 sends Amy and Dan jetting off to find out just what's behind the fierce rivalry between the Tomas and Ekaterina branches of the Cahill family. Was a Clue stolen from the Tomas branch? Where is it now? And most important, can Amy and Dan get their hands on it before their rivals do? It's a wild race that will take Amy and Dan deep into the bowels of the earth... and right into the hands of the enemy.

This fast-paced paranormal adventure combines passion and drama with a historical twist. The lives of Madison and Alexandre are plunged into darkness and danger. To save Maddy, Alexandre is forced back to a world he thought was dead and buried. But time is running out. The chase is on.