Nick and his friend Marta decide to investigate when a mysterious fire starts near a Florida wildlife preserve and an unpopular teacher goes missing.

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.

When the difficult star of the reality television show "Expedition Survival" disappears while filming an episode in the Florida Everglades using animals from the wildlife refuge run by Wahoo Crane's family, Wahoo and classmate Tuna Gordon set out to find him while avoiding Tuna's gun-happy father.

A mystery writer's daughter sets out to find her missing father and, along the way, begins to understand the loneliness that has gripped them both since her mother abandoned them years before.

After seventeen-year-olds Chloe and Shara, Chloe's rival for valedictorian, kiss, Shara vanishes leaving Chloe and two boys, who are also enamored with Shara, to follow the trail of clues she left behind, but during the search, Chloe starts to suspect there might be more to Shara and her small Alabama town than she thought.

Jay is forced to continually cover for his sister, Nicole, who hangs out with the wrong crowd; however, Jay can't deal with it any more. Soon after, Nic fails to return home. When she's deemed missing, the police barely bother to search for her; she's just another lost Black girl. Jay feels guilty and he thinks, "If I hadn't hung up on her that night, she would be home spending time with our grandma. If I was a better brother, she'd be finishing senior...

Eleven-year-old Tilly Pages, who has found comfort in her grandparents' bookshop since her mother's disappearance, now learns that she can bookwander into stories, and decides to seek her mother.

On a cold winter day in Chicago, Early's father disappeared, and now she, her mother and her brother have been forced to flee their apartment and join the ranks of the homeless--and it is up to Early to hold her family together and solve the mystery surrounding her father.

Sixteen-year-old Aza never intended to pursue the mystery of fugitive billionaire Russell Pickett, but there's a hundred-thousand-dollar reward at stake and her best and most fearless friend, Daisy, is eager to investigate. So together, they navigate the short distance and broad divides that separate them from Russell Pickett's son, Davis. Asa is trying. She is trying to be a good daughter, a good friend, a good student, and maybe even a good detective,...

After their father's mysterious disappearance, Kay and her younger sister Ell set off on an epic quest to find him and, perhaps, to save the world's stories and storytellers, guided by kindly Wraiths.