A series of bizarre events in their home town lead the Hardy Boys on a trail of robbers and kidnappers.

Paired together after a veteran detective retires, Platypus Police Squad members Rick Zengo, a hotshot rookie, and Corey O'Malley, a hard-nosed old-timer, struggle with their differences while tackling their first case involving a missing schoolteacher and a duffle bag filled with illegal fish.

Owen Brown is your average fourth grader. Or he was, until his best friend, Dana, disappeared right in front of his face, through the floor of the school. Owen's average life has turned upside down. He's determined to find Dana -- before anyone realizes she's missing. Owen sets out on a mysterious, mythological rescue mission with his friends Jon and Sydney. But what none of them know is that Dana's disappearance is part of a much larger riddle. And...

Sixteen-year-old Malencia (Cia) Vale is chosen to participate in The Testing to attend the University; however, Cia is fearful when she figures out her friends who do not pass The Testing are disappearing.

"Twelve-year-old Hazel Woods has always had an unusual knack for sleuthing. So, when she not-so-accidentally overhears her brother Den planning to sneak into the cemetery at night for an epic game of hide-and-seek, she decides to secretly tag along. This seems like the perfect opportunity to investigate the claims that the cemetery is haunted. But the moment the game ends, Hazel realizes something is very, very wrong. From her hiding spot in the bushes,...

When seventh-grader Calder Pillay disappears from a remote English village--along with an Alexander Calder sculpture to which he has felt strangely drawn--his friends Petra and Tommy fly from Chicago to help his father find him.

Seventeen-year-old Asa flees her domineering father to prevent her sister's mind from being reprogrammed, but she must ally with a smuggler named Riven to outwit a bounty hunter, a criminal syndicate, and a monster lurking in the city's circuits.

"Dink, Josh, and Ruth Rose must solve a mystery when they go whale watching in Alaska"--

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

Witty typewriter Olivetti and twelve-year-old introvert Ernest embark on a mission to find Ernest's missing mother that takes them across San Francisco.