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.

"Christmas has come, and with it a sparkling white winterfrost over the countryside. But twelve-year-old Bettina's parents have been called away unexpectedly, leaving her in charge of the house, the farm, and baby Pia. In all the confusion, Bettina's family neglects to set out the traditional bowl of Christmas rice pudding for the tiny nisse who are rumored to look after the family and their livestock. No one besides her grandfather ever believed...

When an accidental spell brings a mysterious stone toad to life, and it hops away with her human friend William between its jaws, Fauna must use her magic and her wits to save him, embarking on a journey through dangerous lands filled with fearsome giants, talking bears, and packs of rogue goblins.

Hoping to find his lost brother, Rownie escapes the home of the witch Graba and joins a troupe of goblins who perform in Zombay, a city where humans are forbidden to wear masks and act in plays.

Eleven-year-old Nicholas Vargas only thinks his life has been turned upside down after his developer father remarries and moves his new wife and daughter into the soon-to-be completed Mangrove Hollow. But an "expedition" to a nearby lake turns up a little nixie with a giant problem--the huge, lumbering, fire-breathing variety --and it's up to Nick, his stepsister Laurie, and his big brother, Julian (plus a familiar face from the original Spiderwick...

Twelve-year-olds Tinn and Cole, raised as human twins in sleepy Endsborough, risk their lives in the Wild Wood, Oddmire Swamp, and the Deep Dark to learn which is a goblin changeling with an important mission.

Half-goblin boy Joseph Grubb takes the package he found in the Legless Mermaid tavern and runs away from his abusive human uncle and the shape-shifter who is too interested in something that does not belong to him--but his escape plunges him into Port Fayt's criminal underworld and the assortment of elves, trolls, fairies, and humans who live there, as well as the Demon's Watch who are trying to save the port from a deadly threat.

When eight-year-old Elliot Penster unwittingly saves a brownie from a group of goblins on Halloween night, he becomes their reluctant king and champion in a war against the evil goblins.

Twelve-year-old Sam Hill and seventeen-year-old PJ discover a scary world of goblins under the earth after one of the creatures escapes through a tunnel in the ground, and when Sam follows it back down, PJ must go underground to rescue him.

Boot boy Ji is tired of scrubbing soles and untangling shoelaces. He doesn't want to bow and scrape. All he wants is freedom--for himself and his friends. He decides to risk everything for a chance to accompany a young nobleman to the Diadem Rite, a magical ritual that chooses the heir to the Summer Crown. Ji doesn't care about crowns or ceremonies, but he vows that this trip will grant him and his friends new lives, far away from boots and bowing....