Trenton Colman is exceptionally creative, with a knack for all things mechanical. But his talents are viewed with suspicion in Cove, a steam-powered city built inside a mountain. In Cove, creativity is a crime, and invention is a curse word.

Twins Willow and Jake Grimm are not prepared for the bizarre gadgets and scary changes in their new home of New Marburg, the location of the top-secret Think Tank where their parents now have jobs as scientists. In this town, people jetpack to work, robots direct traffic, and senior citizens duel with laser swords. Yet nothing compares to what happens the day after lightning strikes the twins’ house. Their school building transforms around them, becoming a medieval castle—complete with moat, drawbridge, and a dangerous giant who looks strangely like the school’s overly aggressive hall monitor.

Even though ­thirteen-­year-­old Marcus Kanenas is confined to a wheelchair, he sees himself as a survivor and a dreamer. In fact, his favorite dream is of a world far away, a world where magic is as common as air, where animals tell jokes, and where trees beg people to pick their fruit. He even has a name for this place - Farworld. When Marcus magically travels to Farworld, he meets Kyja, a girl without magic in a world where spells, charms, and potions are everywhere, and Master Therapass, a master wizard who has kept a secret hidden for 13 years, a secret that could change the fate of two ­worlds.

Twelve-year-old Gordy Stitser is one of the few people who knows the truth about the secret society of potion masters, because not only is Gordy's mom on the Board of Ruling Elixirists Worldwide (BREW), but she has also been training Gordy in the art of potion-making. Gordy is a natural, and every day he sneaks down to the basement lab to invent new potions using exotic ingredients like fire ant eggs, porcupine quills, and Bosnian tickling juice. One afternoon, Gordy receives a mysterious package containing an extremely rare potion known as "The Eternity Elixir."

Grace and Ellie have been best friends since second grade. Ellie's always right in the center of everything - and Grace is usually happy to be Ellie's sidekick. But this time, it's Grace who suddenly has everyone's attention when she accidentally starts a new fad at school. It's a fad that has first her class, then her grade, and then the entire school collecting and trading and even fighting over...buttons? A fad that might also get her in major trouble and could even be the end of Grace and Ellie's friendship. Because Ellie's not used to being one-upped by anybody. 

No one takes Spencer Zumbro seriously when he tried to warn his classmates about the mysterious things prowling the halls and classrooms of Welcher Elementary School. But when he sees Marv, the janitor, going after one of the creatures with a vacuum, he knows he's not the only one who can see them. With the help of his new friend, Daisy, Spencer has to find out what the janitors know. The children's search uncovers the magic taking place behind the scenes of their seemingly ordinary school.

Fourteen-year-old Ozzy lives near Portland, Oregon, and is desperate for help. His scientist parents have been kidnapped after discovering a formula that enables mind control. Their work was so top secret that Ozzy is afraid to go to the police, but without help, he fears he'll never find his parents. Then he stumbles across a classified ad in the local newspaper that says "Wizard for Hire. Call 555-SPEL." Ozzy has read about wizards in books like Harry Potter, but wizards couldn't exist today, could they? After Ozzy meets the wizard Labyrinth - a.k.a. Rin - he's even more skeptical.

Welcome to the Sweet Tooth Ice Cream & Candy Shoppe, where the confections are a bit on the... unusual side. Rock candy that makes you weightless. Jawbreakers that make you unbreakable. Chocolate balls that make you a master of disguise. Four young friends - Nate, Summer, Trevor, and Pigeon - meet the grandmotherly Mrs. White, owner of the Sweet Tooth, and soon learn about the magical side effects of her candies.

After spending a busy holiday season putting drug smugglers behind bars, CIA operative Cole Bridger is looking forward to spending a quiet Christmas in Vienna with his girlfriend and fellow operative, Isabelle Roberts. But when Isabelle is tasked with investigating a string of suspect financial transactions and redirects a suspicious package to a museum in Amsterdam, she inadvertently places Cole’s cousins in the crosshairs of a drug smuggling ring.

Twelve-year-old Maddie has a quirky sense of humor and loves making her classmates laugh by slapping on fake mustaches every chance she gets. Being funny gets her noticed by class queen Cassie, and things are looking up when Maddie is cast as Juliet in the school play. Maybe Juliet could wear a mustache? When Maddie starts tripping when she walks and her hand starts curling up at her side, her mom takes her to the doctor, who confirms Maddie has a brain tumor. In an instant, her world is turned upside down.