With the help of an eccentric ex-governor, a teenaged boy searches for his missing cousin in the Florida wilds.

A mentally ill teenager who rides the "short bus" to school investigates the sudden disappearance of his best friend.

When "The Kid" that high schooler Nick sees from the bus every day disappears, Nick and former friend Ava investigate to learn if something is wrong.

"The Upside Down, a place only seen before in psychic visions and nightmares. Will Byers doesn't know what to call the shadowy realm he finds himself in, but he is certain that he is alone and far away from anything close to safe. A strange shrieking monster lurks around every corner and familiar voices drift through the air from the other side. To survive, Will holds onto the lessons he's learned in the camaraderie of his friends, and the hope that...

"The Upside Down, a place only seen before in psychic visions and nightmares. Will Byers doesn't know what to call the shadowy realm he finds himself in, but he is certain that he is alone and far away from anything close to safe. A strange shrieking monster lurks around every corner and familiar voices drift through the air from the other side. To survive, Will holds onto the lessons he's learned in the camaraderie of his friends, and the hope...

A teenaged girl tries to keep her family and herself together after the disappearance of her younger sister.

"A boy who feels powerless in his own life sets out to investigate the mystery of a missing high school girl in his town, who attends an elite private high school very unlike his own"-- Provided by publisher.

While fifteen-year-old Ellie tries to find her missing eleven-year-old brother, Danny, in alternating chapters Danny dreams of a parallel quest in a fantasy world of dragons and shapeshifters that he and Ellie knew as children.

"In 1943 Nazi-occupied Amsterdam, teenage Hanneke--a 'finder' of black market goods--is tasked with finding a Jewish girl a customer had been hiding, who has seemingly vanished into thin air, and is pulled into a web of resistance activities and secrets as she attempts to solve the mystery and save the missing girl"--

When new and unconventional high school student Amada Valentino disappears, her three closest friends, who are all from vastly different circles, band together and, using enigmatic clues that seem to come from Amanda herself, try to find her.