Artemis Fowl creates an extraordinarily powerful computer with stolen fairy technology, but his business deal hopes go sour when a Chicago businessman steals his invention and mortally wounds Artemis's loyal bodyguard.

Trying to heal after a battle and heartbreaking losses, Breen, who grew up in the world of Man, rededicates herself to writing stories and spending time with Keegan, until witches appear to her in her sleep and reveal their plans for practicing black magick, sacrificing the innocent, and plotting a brutal destruction for Breen.

After a shared homework assignment goes awry, Rhonda and Amelia figure out why they are always fighting, while "superhero" Reggie and "ninja" Kyle try to become archenemies.

Super Potato has defeated every enemy . . . but he usually gets a good night's sleep between villains. When sinister scientist Malicia the Malignant sends dozens of dinosaurs to fight him, the number of prehistoric pests keeps Super Potato awake for days. How do you thwart a T-Rex on 42 hours with no rest? Can our hero survive? He's just one potato!

"Everyone has regrets in life. So who wouldn't take the chance to change the past if given the opportunity? When sixteen-year-old Takamiya Naho receives a mysterious letter, claiming to be from her twenty-seven-year-old self, her life is suddenly thrown into flux. The letter informs her that a new transfer student by the name of Naruse Kakeru will be joining her class, and to keep her eye on him. What is Naho to make of the letter's contents and its...

Lunella and Devil meet Spider-Man, try to keep the peace when Manhattan freezes solid (and they meet Thor!), team up with younger versions of Lunella's parents and grandparents while trying to fix the Omni-Wave projector without erasing themselves from history, and then Devil is on his own when Lunella gets stuck in class.