Thirteen-year-old Amari, a poor African American girl from the projects, gets an invitation from her missing brother to join the Bureau of Supernatural Affairs and join in the fight against an evil magician.

Twins Theo and Alexander along with their sister Wil are abruptly dropped off at their Aunt Saffronia's house, where they learn they must complete a series of tasks in order to see their parents again, the first of which is solving a mystery at the Fathoms of Fun waterpark.

"Following clues left by their missing father, twelve-year-old twins Bickford and Rebecca Kidd sail from the Caribbean to New York City with their siblings to finish the dangerous quest of their world-famous treasure-hunting parents"--Provided by publisher.

When her friend Monday Charles goes missing and Monday's mother refuses to give her a straight answer, Claudia digs into her disappearance.

Something is wrong with twelve-year-old Zee, who has returned after a year's absence; nobody knows where he was or what happened to him, but now he is distracted and violent, freaking out when he sees his friends, Justin, Nia, and Lyric, playing an odd game of hide-and-seek, and talking wildly about some danger that is approaching--and soon his friends are pulled into a shadowy world ruled by a monstrous, shape-shifting Seeker, forced to play a terrifying...

In the fading town of Stain'd-by-the-Sea, young apprentice Lemony Snicket has a new case to solve when he and his chaperone are hired to find a missing girl. Is the girl a runaway? Or was she kidnapped? Was she seen last at the grocery store? Or could she have stopped at the diner? Is it really any of your business? These are All The Wrong Questions.

"Twelve-year-old twins Bickford and Rebecca Kidd and their two older siblings travel to Africa to track down priceless artifacts that will keep the family's treasure hunting business afloat long enough to rescue their kidnapped mother--and possibly find their missing father"--

With World War II raging overseas, Toby, a shell-shocked WWI veteran, patrols the hills outside of Wolf Hollow, Pennsylvania, and no one knows why. Everyone is scared of him, except for twelve-year-old Annabelle. When new girl Betty Glengarry tries to take Annabelle's money, Toby comes to her rescue and makes the bully leave. Then Betty accuses Toby of a crime he didn't commit, so Annabelle vows to clear Toby's name.

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

Enola Holmes, much younger sister of detective Sherlock Holmes, must travel to London in disguise to unravel the disappearance of her missing mother.