When Mallory and Jared attempt to rescue Simon from goblins, they use a magical stone which enables them to see things that are normally invisible.

When the Grace children find their house ransacked with the Field Guide and their mother missing, they must set out on a dangerous quest to rescue her and face the ogre Mulgarath.

After Mallory is kidnapped at her fencing meet, Jared and Simon search for her near an old quarry and find themselves amidst dwarves and goblins.

"Uptight elfin historian Brangwain Spurge is on a mission: survive being catapulted across the mountains into goblin territory, deliver a priceless peace offering to their mysterious dark lord, and spy on the goblin kingdom -- from which no elf has returned alive in more than a hundred years. Brangwain's host, the goblin archivist Werfel, is delighted to show Brangwain around. They should be the best of friends, but a series of extraordinary double...

"Katherine Addison returns at last to the world of The Goblin Emperor with this stand-alone sequel. When the young half-goblin emperor Maia sought to learn who had killed his father and half-brothers, he turned to an obscure resident of his Court, a Prelate of Ulis and a Witness for the Dead. Thara Celehar found the truth, though it did him no good to discover it. Now Celehar lives in the city of Amalo, far from the Court though not exactly in exile....

While everyone in Fairyland is getting ready for the Fairy Olympics, Jack Frost's goblins steal the Sports Fairies' magic objects, and Rachel and Kristy must snag Alice's magic racquet, the goblins are going to win --- game, set, and match!

While everyone in Fairyland is getting ready for the Fairy Olympics, Jack Frost's goblins steal the Sports Fairies' magic objects, and Rachel and Kristy are determined to roll away with Zoe's magic shoelace.