Young Adult Thriller

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.

People say New York City is a jungle. Still, P.C. Hawke is a little surprised when his best friend, Mackenzie, invites him to tag along with her police coroner mother to examine a scientist who has been mauled by jaguars at the Bronx Wildlife Conservation Park. But when the two teenage sleuths learn that the scientist actually died because he was given a lethal dose of gorilla blood after the attack, they quickly realize that the most vicious predator imaginable is loose in the park - a human killer!

The dead carry their secrets with them.... At least until they end up at Riley Smith's door. Her latest spectral visitor is a murdered bride with a need for revenge, and not necessarily for the person who killed her. Never mind that killer is about to strike again. Riley's determined to help, but is missing Hayden, the hot, ghostly boy who's always had her back. Living, breathing Hayden is awake, which means his spirit isn't around to flirt with Riley anymore. Worse yet, the "real" Hayden doesn't remember her.

When Natasha’s sister disappears, Natasha desperately turns to Della, a local girl rumored to be a witch, in the hopes that magic will bring her sister home. But Della has her own secrets to hide. She thinks the beast who’s responsible for the disappearances is her own mother - who was turned into a terrible monster by magic gone wrong. Natasha is angry. Della has little to lose. Both are each other’s only hope.

With false friends she needs to ditch and a love interest she is terrified to lose, Rory tries to navigate everyday life that is far from every day. Especially when those who murdered her parents set their sights on her. It would be a lot easier if she even knew who this was…or who she really is either.

What do the queen bee, star athlete, valedictorian, stoner, loner, and music geek all have in common? They were all invited to a scholarship dinner, only to discover it’s a trap. Someone has locked them into a room with a bomb, a syringe filled with poison, and a note saying they have an hour to pick someone to kill...or else everyone dies.

Jared and his friends thought they were going on a fun camping trip at Eagle Point. But from the moment the trip begins, it's obvious that something weird is going on. The clerk at the outfitters store tells them not to go, and when they arrive they find remnants of an awful blaze and a burned cabin. The campground's caretaker seems to be dead, but is he really gone?

There was nothing I ever wanted less than to be princess at the Royal Court. After devastation rocked my whole world, the return of my mother doesn't seem like the dream it was supposed to be. I know how to be a warrior. I have no idea how to be a princess.... With her whole world turned upside down and her heart still broken, who will Addie be at the end of it all?

The juniors at Paloma High School all have their secrets, whether it's the thespian who hides her trust issues onstage, the closeted pansexual who cares only about his drug-dealing profits, or the neurotic genius who's planted the seed of a school scandal. But it's Juniper Kipling who has the furthest to fall. No one would argue that Juniper - obedient daughter, salutatorian, natural beauty, and loyal friend - is anything but perfect.

Joseon (Korea), 1758. There are few options available to illegitimate daughters in the capital city, but through hard work and study, 18-year-old Hyeon has earned a position as a palace nurse. All she wants is to keep her head down, do a good job, and perhaps finally win her estranged father's approval. But Hyeon is suddenly thrust into the dark and dangerous world of court politics when someone murders four women in a single night, and the prime suspect is Hyeon's closest friend and mentor. Determined to prove her teacher's innocence, Hyeon launches her own secret investigation.

Robbie and Trevor Cresmont have a body count—the killer kind. Handsome and privileged, the Crestmont brothers have enough wealth to ensure they’ll never be found guilty of any wrongdoing, even if all of Happy Valley believes they're behind the deaths of their ex-girlfriends. First there was soccer star Victoria Moreno, Robbie’s ex, who mysteriously drowned at the family lake house. Then, a year later, Trevor’s girlfriend died of a suspicious overdose.

Scoring an invitation for membership to the exclusive Legacy Club in New York City is more than an honor. It gives you a lifetime of access to power and wealth beyond any prep school doors and guaranteed safety and security. So it’s not surprising when Excelsior Prep seniors Bernie Kaplan, Isobel Rothcroft, and Skyler Hawkins are nominated as Legacies; their family pedigrees have assured their membership since birth—even if they're all keeping secrets that could destroy their reputations. But scholarship kid from Queens Tori Tasso? She’s a surprise nominee.

Newly arrived in New Fiddleham, New England, 1890, and in need of a job, Abigail Rook meets R. F. Jackaby, an investigator of the unexplained with a keen eye for the extraordinary - including the ability to see supernatural beings. Abigail has a gift for noticing ordinary but important details, which makes her perfect for the position of Jackaby’s assistant.

There's a killer at Ruby's new school. It's Ruby. On her first day at a new school, Ruby finds a note in her locker saying "I KNOW YOU DID IT". She's terrified that someone has found out she was responsible for the death of a girl called Hannah in a playground when they were both toddlers - a secret that has haunted her for years. When first one, then two students are found dead, it looks like another killer is framing Ruby. Or, she might be next.

Because her mom is always on the move, Steph hasn’t lived anyplace longer than six months. Her only constant is an online community called CatNet - a social media site where users upload cat pictures - a place she knows she is welcome. What Steph doesn’t know is that the admin of the site, CheshireCat, is a sentient A.I. When a threat from Steph’s past catches up to her and ChesireCat’s existence is discovered by outsiders, it’s up to Steph and her friends, both online and IRL, to save her.

Seventeen years ago, Layla Trello was murdered and her killer was never found. Enter true-crime fan Piper Gray, who is determined to reopen Layla’s case and get some answers. With the help of Jonas—who has a secret of his own—Piper starts a podcast investigating Layla’s murder. But as she digs deeper into the mysteries of the past, Piper begins receiving anonymous threats telling her to back off the investigation, or else. The killer is still out there, and Piper must uncover their identity before they silence her forever.

Morgan Rowlands loves Cal Blaire. He taught her about Wicca and helped her find out who she is. But now they share a secret. A terrible, dark secret that binds them together, even as it tears them apart.

When five Dublin teenagers arrive at a rural coastal college to cram for their final exams, their most pressing concern is the prospect of a month with no partying. Little do they know that one of them will never make it back home.

Devon Marsh is haunted by secrets. Like the identity of the person who killed her twin sister, Emily, in a hit and run accident last Halloween, which Devon has vowed to uncover. Like the things Devon said to Emily just before she died.

In Boston a young woman finds herself pregnant - even though she is still a virgin. In Ireland another young woman discovers she is in the same impossible condition. And in cities all around the world, medical authorities are overwhelmed by epidemics, droughts, famines, floods, and worse. It all feels like a sign that something awful is coming. Anne Fitzgerald, a former nun turned private investigator, is hired by the Archdiocese of Boston to investigate the immaculate conceptions.