Aiden works with the FBI in order to rescue his sister Meg, who was kidnapped.

Privately questioning her remote community's superstitions about dangerous powerful spirits in their Devil's Alley home, Cecelia Rios experiments with the forbidden art of brujería to rescue her kidnapped sister.

When the creator of a new, popular reality game is kidnapped, Abigail Hunter and her friends go on their first official mission for The Center and if they are lucky they might just save the world.

After fourteen-year-old Ozzy's scientist parents are kidnapped, Ozzy's only help may be a classified ad that says "Wizards for hire."

Kai's sister, Nya, is kidnapped and he must learn Spinjitzu from Sensei Wu, a mysterious old man, to rescue her.

It is a time of trouble in the Northern Kingdoms because a group of power-hungry polar bears called Roguers has been snatching cubs from their mothers and killing those who resist; but Svenna is not about to relinquish her two cubs to that fate, so she agrees to go with the Roguers and serve Mystress of the Hands if her cubs, who have special powers, are allowed to stay with her cousin--but nobody is truly safe when a way of life is collapsing around...

The star of their favorite television show is kidnapped at the Grand Canyon, and it is up to Dink, Josh, and Ruth Rose to find him.

When Nightshade kidnaps his best friend, teen spy Alex Rider must enter the world of virtual reality gaming where the lines between what's real and what's digital are deliberately being blurred by a ruthless enemy.

The Electroclan embarks on a daring rescue mission when Michael Vey goes missing.

When their ship, the Lost, explodes, Bick, Beck, Tommy, and Storm are stranded on a raft in the middle of the Mediterranean Sea, but the situation worsens when the treasure hunters kidnap their parents, forcing the Kidd siblings to follow clues around the globe to uncover an ancient treasure and save their family.