Meg Murry, her brother Charles Wallace, and their friend Calvin O'Keefe become involved with unearthly strangers and a search for Meg's father, who has disappeared while engaged in secret work for the government.

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

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.

"One day a young couple wakes to find a boy asleep on their porch. Unable to speak, the boy cannot explain his history. What kind of people would leave their child with strangers? All John and Marta know is that they have been chosen to care for this boy. As their connection to him grows, they embrace his exuberant spirit and talents. The three of them blossom into an unlikely family, but how long can their happiness last?"-- From dust jacket flap....

"One hundred and fifty years ago, the first dinosaurs were cloned. Soon after, they replaced humans at the top of the food chain. The only way to survive was to move into underground compounds. . . . Five years ago, Sky Mundy's father vanished from North Compound without a trace. Now she has just stumbled on a clue that not only suggests his disappearance is just the tip of an even larger mystery, but also points directly to the surface. To find her...

When his father disappears while experimenting with a black mirror that is a portal to both the past and the future, Jake encounters obstacles when he tries to use the mirror to find his father.

The Greystone kids thought they knew. Chess has always been the protector over his younger siblings, Emma loves math, and Finn does what Finn does best--acting silly and being adored. They've been a happy family, just the three of them and their mom.But everything changes when reports of three kidnapped children reach the Greystone kids, and they're shocked by the startling similarities between themselves and these complete strangers. The other kids...

Four determined homeless children make a life for themselves in Chennai, India.

Jake Konig, a famous horror novelist, disappears under mysterious circumstances, and the Timberlines become involved when the editor asks Bryce and Ashley's mother to finish writing Jake's last book.

Eleven-year-old Gopal and his family leave their rural Indian village for life with his uncle in Mumbai, but when they arrive his father goes missing and Gopal ends up locked in a sweatshop from which there is no escape.