Thirteen-year-olds Cooper Goodman and Justice and Liberty Gordon investigate the eccentric residents of Windy Bottom, Georgia, after the remains of Coop's long-missing grandmother are uncovered and his Gramps is the prime suspect.

A weekend on the ski slopes brings Nancy and her friends into deadly peril. Among the suspects is a good-looking ski instructor.

Two rambunctious boys spend their spring vacation trying to trace several neighborhood pets that have disappeared.

The spies head to New York City when a credible threat is made against a young climate activist.

Third grader Aven Green, who was born without arms but believes that her missing arm cells went to her super-powered brain, tries to solve two cases involving her teacher's missing lunch and the disappearance of her great-grandmother's dog.

When he encounters a floating girl who resembles the girl in a painting stolen from the museum, Rami becomes determined to solve the mystery and teams up with a classmate and a turtle named Agatha to look for the clues all around them.

Milton and James, the skate patrol, figure out the surprising identity of the culprit who has been stealing pets from their apartment building.

Thirteen-year-old Trav has always wondered about his dead-before-he-was-born dad. But when he heads from California to his grandmother's house in rural Minnesota, hoping to learn about his past, he gets more than he bargained for. It turns out his dad was involved in a bank robbery right before he mysteriously disappeared, and the loot from the take is still missing. Along with Kenny and Iz, the kids next door, Trav embarks on a search for the cash....

Bowser the mutt lives with eleven-year-old Birdie Gaux and her grandmother in the normally quiet Louisiana bayou town of St. Roch, but news that a Bull shark has somehow made its way into the swamp has everyone excited, and the cash bounty for landing theshark has lured some very shady characters into town--one hunter in particular is prepared to go to any lengths to collect the money.