When the goddess Artemis goes missing, she is believed to have been kidnapped. And now it's up to Percy and his friends to find out what happened. Who is powerful enough to kidnap a goddess? They must find Artemis before the winter solstice, when her influence on the Olympian Council could swing an important vote on the war with the titans. Not only that, but first Percy will have to solve the mystery of a rare monster that Artemis was hunting when...

All year the half-bloods have been preparing for battle against the Titans, knowing the odds of a victory are grim. Kronos's army is stronger than ever, and with every god and half-blood he recruits, the evil Titan's power only grows. While the Olympians struggle to contain the rampaging monster Typhon, Kronos begins his advance on New York City, where Mount Olympus stands virtually unguarded. Now it's up to Percy Jackson and an army of young demigods...

Because Dragonwatch, an ancient group of wizards, enchantresses, and dragon slayers, is crumbling, an uprising of dragons threatens to destroy the magical preserves as well as overrun the nonmagical world.

The Wump World is an unspoiled place until huge monsters bring hordes of tiny creatures from the planet Pollutus.

"As Lucas and Clara set out to investigate some mysterious happenings in Wrenly, they discover a young horse with wings that is lost and in danger"--

Eleven-year-old Darwen Arkwright, raised in a tiny town in England, is expecting life to be different when he is forced to go live with his aunt in Atlanta, Georgia, but he is stunned when an old mirror he finds in his closet reveals an enchanted and dangerous world, whose creatures want something only human children possess.

After a fire kills her parents, eleven-year-old Martine must leave England to live with her grandmother on a wildlife game reserve in South Africa, where she befriends a mythical white giraffe.

Tom and Elenna must face another beast, Cypher, the one-eyed giant who is causing mudslides and avalanches in the mountains of Avantia.

"Ten-year-olds Pearl and Ben, continuing their apprenticeships at Dr. Woo's Worm Hospital, discover that Dr. Woo and the sasquatch are both sick with Troll Tonsillitis, and they must travel to the Imaginary World to find the only cure: a griffin's feather"--Provided by publisher.

Making a terrible discovery at the stream about a mysterious threat that is endangering its magical creatures, Zoey and Sassafras race against time to discover the source of the problem and save the Merhorse species.