When her grandmother decides to ditch assisted living and start a boarding house, fourteen-year-old Amanda Jane Keeling, or Rebel, signs on for the work crew, where she just happens to meet a teenaged boy taller than she is and to embroil them both in a mystery.

Catholic-schooled seventh-graders Sophie, Margaret, Rebecca, and Leigh Ann help an elderly neighbor solve a puzzle her father left for her estranged daughter twenty years ago. First in a series. Sequels: The Vanishing Violin, The Mistaken Masterpiece.

Eighth-grade sportswriters Stevie and Susan Carol team up to solve a mystery at the famous Army-Navy football game.

In a futuristic London, sixteen-year-old forensic investigator Luke Harding and his robotic assistant, Malc, investigate a series of murders in which there are no traces of a murder weapon, and the only thing the victims seem to have in common is their name.

While playing in a crucial basketball game on the very court where his best friend was murdered, Mackey tries to come to terms with his own part in that murder and decide whether to maintain his silence or tell J.R.'s father and the police what really happened.

Here comes Sammy Keyes, a resourceful, brave, too-curious-for-her-own-good young sleuth who gets into trouble with her grandmother's binoculars. Sammy was just killing time when she looked across the street with the binoculars. She certainly didn't imagine that she would see a thief in the act of stealing something from one of the rooms at the Heavenly Hotel. The worst part is that the thief saw Sammy spying! And what did "smart" Sammy do then? She waved at the thief! Now Sammy is in loads of trouble. Can she solve the mystery of the hotel thief before the thief finds her and before the police discover that she has been living illegally with her grandmother? First in a series.

Twelve-year-old Nettie's sheltered and privileged life changes after her beloved tutor mysteriously disappears and Nettie, aided by the son of a household employee, begins to learn the truth about her father, whose wealth began with trafficking in illegal aliens.

Connor is sure his best friend, Branwell, couldn't have hurt Branwell's baby half sister, Nikki. But Nikki lies in a coma, and Branwell is in a juvenile behavioral center, suspected of a horrible crime and unable to utter the words to tell what really happened. Connor is the only one who might be able to break through Branwell's wall of silence. But how can he prove Branwell didn't commit the unspeakable act of which he's accused - when Branwell can't speak for himself?