Reynie, Kate, Sticky, and Constance, all graduates of the Learning Institute for the Very Enlightened and members of the Benedict Society, embark on a scavenger hunt that turns into a desperate search for the missing Mr. Benedict.

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

"Whether it's earrings, homework, or love notes, Tillie ٢Lost and Found٣ Green and her camera can find any lost thing-until a search for a missing person forces her to step out from behind the lens." -- back cover.

"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...

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

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.

Life is confusing for seventh-grader Maggie, who must track down a missing person and find out who is behind a string of dog eggings at the local dog run, while also dealing with issues involving her brother, two of her friends.

"Once a year, a road appears in the forest. And at the end of it, the ghost of Lucy Gallows beckons. Lucy's game isn't for the faint of heart. If you win, you escape with your life. But if you lose.... Sara's sister disappeared one year ago--and only Sara knows where she is. Becca went to find the ghost of Lucy Gallows and is trapped on the road that leads to her. In the sleepy town of Briar Glen, Lucy's road is nothing more than local lore. But Sara...

In Silver Springs, Arizona, her mother's stories of the monstrous La Llorona are thrilling but unbelievable to science-loving Paola until she and her best friends Dante and Emma take a walk through a cactus field near the Gila River.

"Mallory Moss knows the rules of middle school. The most important one? You have to fit in to survive. But then Jennifer Chan moves in across the street, and that rule doesn't seem to apply. Jennifer doesn't care about the laws of middle school ... Then Jennifer goes missing. Using clues from Jennifer's journals, Mallory goes searching. But the closer she gets, the more Mallory has to confront why Jennifer might have run ... and face the truth within...