Tandy Angel is, along with her brothers, a suspect in their parents' murder but having grown up under Malcolm and Maud Angel's perfectionist demands, Tandy decides she must clear the family name no matter what.

Sixteen-year-old Dora travels to London to meet Sherlock Holmes, who might be her biological father, and ask his help for her cousin who is being blackmailed over some stolen letters, but although Holmes dies before she arrives, a handsome young detective comes to Dora's aid.

Rory, a girl in witness protection, thinks the serial killer she turned in has found her and is killing people around her. But as she investigates, she discovers a dark, disturbing truth about her new hometown.

Seventeen-year-old Emma Paxton steps into the life of her long-lost twin Sutton to solve her murder, while Sutton looks on from her afterlife.

As one of only two Asian students at Slackenkill High School, freshman Xing Xu exists on the fringes of adolescent society, counting the days until he's free. When a series of abductions rattles his adopted hometown, Xing as an outsider is able to see and hear things others cannot. As he moves closer to unveiling the kidnapper, he must choose between staying in the shadows and revealing a secret from his past which may prove his worth to his classmates.

New student Jade uncovers a murder mystery when she moves into a house haunted by the ghost of a beautiful, mean girl who ruled Jade's high school.

High-schooler Willa has just moved to California with her mother and film director stepfather, and she will be attending a private school--but her real problem is that she keeps seeing things that are not really there, like a dead body in the swimming pool, and her visions may be connected to a serial killer that is stalking young girls in Hollywood.

In 1868, with his army officer father suddenly posted to India, and his mother mysteriously "unwell," fourteen-year-old Sherlock Holmes is sent to stay with his eccentric uncle and aunt in their vast house in Hampshire, where he uncovers his first murder and a diabolical villain.

Berry Fields's life working for her dad's investigation firm and searching for clues to her mother's death unravels when gorgeous Tanner arrives in town and changes everything.

Rescued from the gallows in 1850s London, young orphan and thief Mary Quinn is offered a place at Miss Scrimshaw's Academy for Girls where she is trained to be part of an all-female investigative unit called The Agency and, at age seventeen, she infiltrates a rich merchant's home in hopes of tracing his missing cargo ships.

When a famous forensic scientist turns up dead and Ruby's father becomes the prime suspect, Ruby must marshal everyone she can to help solve the mystery and prove her father didn't poison his boss.

After winning a basketball reporting contest, eighth graders Stevie and Susan Carol are sent to cover the Final Four tournament, where they discover that a talented player is being blackmailed into throwing the final game.

While helping the Portland County Sheriff's Search and Rescue to seek a missing autistic man, teens Alexis, Nick, and Ruby find instead, a body and join forces to find the girl's murderer, forming an unlikely friendship, as well.

When a teenaged girl with a bad reputation is murdered in New York City's Central Park after a party, her childhood friend is determined to solve the mystery of who caused her death.