GPLD Best Mystery/Thriller/Horror for Teens

Fifteen-year-old Najwa Bakri is forced to investigate the mysterious death of her best friend and Scrabble Queen, Trina, a year after the fact when her Instagram comes back to life with cryptic posts and messages.

Seventeen-year-old Luca lives on Parris, an idyllic but cursed island with a history of unsolved deaths, but when Luca's sister becomes the latest victim, she is determined to find the murderer and soon comes face to face with the curse she has been running from her whole life.

J.B., Ramón, and Trey, students of the Urban Promise Prep School, must follow the school's strict rules, but when their principal is murdered, the three boys must band together to track down the real killer before they are arrested.

Sherlock Holmes and Dr. Watson descendants, Charlotte and Jamie, students at a Connecticut boarding school, team up to solve a murder mystery.

"When local girl Loren includes Mara in a traditional Blackfeet Giveaway to honor Loren's missing sister, Mara thinks she'll finally make some friends on the Blackfeet reservation. Instead, a girl from the Giveaway, Samantha White Tail, is found murdered. Because the four members of the Giveaway group were the last to see Samantha alive, each becomes a person of interest in the investigation. And all of them-Mara, Loren, Brody, and Eli-have a complicated...

Alice Ogilvie's disappearance last summer is the biggest scandal at Castle Cove High School--until her ex-boyfriend is accused of murdering his new girlfriend, and Alice must pair up with her tutor Iris Adams to clear his name by relying on the wisdom of Agatha Christie.

When sixteen-year-old Avery West learns her family is part of a powerful and dangerous secret society, and that her own life is in danger, she must follow a trail of clues across Europe.

While investigating an infamous Hollywood murder mystery for their final YouTube episode, four teenagers visit the scene of the crime, but one does not come out alive, leaving the others to solve crimes old and new--or die trying.

Seventeen-year-old Ross Quest, a master thief, enters the Thieves' Gambit, a competition consisting of dangerous, international heists, in order to save her mother's life. At only seventeen years old, Ross Quest is already a master thief, especially adept at escape plans. Until her plan to run away from her legendary family of thieves takes an unexpected turn, leaving her mother's life hanging in the balance. In a desperate bid, she enters the Thieves'...

"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....