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.

When the Alden children and their grandfather visit Everglades National Park in Florida to solve the mystery of a missing ranger, they discover that a panther provides a clue.

Eighteen-year-old Calli finds herself alone after the loss of her father--until a bruised and broken girl shows up on her property, forcing her to face the present, rethink her future, and unearth the skeletons of her own past.

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.

An otherworldly fox is born to help eleven-year-old Jules, who is grieving over the death of her sister.

After her mother dies, twelve-year-old Louisa LaRoche is awaiting the return of her father when she finds a ticket to the Carnival Beneath the Stars and is drawn toward a magical but dangerous fate.

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,...

When Max and his sister Rose go to visit their grandmother's lakeside vacation home, they soon discover that their nightly sleeps bring them to a timelocked place with kids from all different eras, united by their love of the lake--and Max begins to wonder if they can help him to find his missing mother.

Told from separate viewpoints, as Finn, Emma, and Chess Greystone and Natalie Mayhew, ages eight to thirteen, continue their quest to rescue their mothers they must return to the alternate dimension where truth is illegal.

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.