One month before graduating from his Central Florida high school, Quentin "Q" Jacobsen basks in the predictable boringness of his life until the beautiful and exciting Margo Roth Spiegelman, Q's neighbor and classmate, takes him on a midnight adventure and then mysteriously disappears.

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.

Despite his overwhelming fear of interacting with people, Christopher, a mathematically-gifted, autistic fifteen-year-old boy, decides to investigate the murder of a neighbor's dog and uncovers secret information about his mother.

"Grayson Hawthorne was raised as the heir apparent to his billionaire grandfather, taught from the cradle to put family first. Now the great Tobias Hawthorne is dead and his family disinherited, but some lessons linger. When Grayson's half-sisters find themselves in trouble, he swoops in to do what he does best: take care of the problem--efficiently, effectively, mercilessly. And without getting bogged down in emotional entanglements. Jameson Hawthorne...

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.

A group of teenagers uses their combined talents to re-steal several priceless paintings and save fifteen-year-old Kat Bishop's father, himself an international art thief, from a vengeful collector.

A horrific family tragedy sends sixteen-year-old Jacob journeying to a remote island off the coast of Wales, where he discovers the crumbling ruins of an old orphanage that was home to children who were more than just peculiar, but possibly dangerous--and who may still be alive. Illustrated with vintage found photographs.

Thirteen-year-old Mary Beth Mullet and her twin brother, Johnny, discover that someone has been spending time in the old barn Mary Beth escapes to when she needs time to herself.

Francie plunges into her senior year of high school near Minnesota's Enchantment Lake, but when her long-lost brother, Theo, turns up, so does a dead body, and Francie is drawn into another mystery.

In 1426 in Joseon, a year after her father vanishes while investigating the disappearance of thirteen girls, eighteen-year-old Min Hwani returns to the island of Jeju to pick up his trail with the help of her estranged sister.