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.

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.

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.

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...

"A twelve-year-old girl discovers her father is the keeper of the gateway between our world and The Dark, and when he goes missing she'll need to unlock her own powers and fight a horde of spooky creatures set on starting a war"--

Rushing to the sleepy seaside village of Porthaven to help her grandmother when her granddad mysteriously vanishes, Mia discovers a diary on an empty fishing boat and begins exchanging notes with a local girl who makes excuses for not meeting Mia in person, adding to an already mystifying situation.

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

After years in foster care, April gets to live in a mansion where she and four other children are caught up in a mystery related to a missing heir, a lost legacy, and the Phantom.

Vega Jane has never left the village of Wormwood. But this isn't unusual, nobody has ever left the village of Wormwood. At least not until Quentin Herms vanishes into the unknown. Vega knows Quentin didn't just leave, but that he was chased. And he's left behind a very dangerous trail of clues that only she can decode. The Quag is a dark forest filled with terrifying beasts and bloodthirsty Outliers. But just as deadly are the threats that exist...

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