On a mission to rescue Empress Justina's son from his pirate kidnappers, Hal and the brotherband crew set sail amid stormy seas to the island of Santorillos where they encounter a formidable obstacle, a caldera.

"They say that a ghost witch lives in the woods, up on Brewster's Hill. They say her companion, Bloody Bones, has a pig skull for a face and stands taller than a man, his skeleton gleaming white in the moonlight. They say that the witch takes young girls, and no one ever sees them again. Daniel doesn't believe the stories about the witch or her beast. He figures the kids on the bus are just trying to scare him, since he's new. But when his sister,...

Gifted with the ability to draw maps of worlds that are beyond imagining, K2 O'Hero, sworn to keep his family's Magical history a secret, must use his gift to find a crossing point into one of those worlds when his baby sister is kidnapped.

"13-year-old Alice TodHunter Moon goes in search of her friend Ferdie, who has been kidnapped by the malevolent Lady, encountering Septimus Heap, ExtraOrdinary Wizard, and awakening her own Magykal potential"--

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.

Marzana and her best friend, Nialla, are bored. In a city where normal rules don't apply, it seems that adventure should be everywhere, yet nothing exciting ever happens to them. Nothing, that is, until Marzana's parents are recruited to help solve a kidnapping that makes no sense. This could be the excitement Marzana and Nialla have been looking for - if they can crack the case without getting caught meddling. They gather a group of kid detectives...

When pirates capture a cloudship and its crew, it is up to young Nadya and her friends, all orphans, to rescue the only family they have ever known.

"Pinmei, a storyteller's granddaughter, must find the Luminous Stone that Lights the Night to rescue her grandmother, who has been kidnapped by the Tiger Emperor"--

As Wade, Darrell, Lily, and Becca continue their search for an ancient relic, Wade's mother is kidnapped by Galina Krause, leader of the present-day Teutonic Knights.

"Mabel Jones finds herself aboard the Feroshus Maggot--a ship crewed by the strangest bunch of pirates you'd (never) want to meet. She then has to find pieces of an X-shaped puzzle that in her hands could be her ticket home, but in the hands of Captain Split, they'd give him the power to assemble a pirate militia to take over London!"--