While climbing Mt. Baldy, Treva outwits some trolls who want to steal her dog.

Hedgie, the hedgehog, helps Henny, the speckled hen, trick the Tomten, who has been eating all of Henny's eggs for breakfast.

Eleven-year-old twins Miles and Beckett Fowl enjoy adventure and mayhem while helping a troll escape nefarious forces that want his magic.-- One week after their eleventh birthday, the Fowl twins-- scientist Myles, and Beckett, the force of nature-- befriend a troll who has clawed his way through the earth's crust to the surface. Unfortunately the troll is being chased by a nefarious nobleman and an interrogating nun, who both need the magical creature...

Emma and Eadric travel to Upper Montevista to ask his parents to bless their upcoming marriage and discover that Eadric's younger brother has been kidnapped by trolls.

"Bera doesn't ask for much in life. She's a solitary, humble troll, tending her island pumpkin patch in cheerful isolation. She isn't looking for any trouble. But when trouble comes to find her, it comes in spades. A human baby has arrived in the realm of the trolls. Nobody knows where it came from, but Bera seems to be the only person who doesn't want it dead. There's nothing to do it but return the adorable little thing to its own world. Like it...

Eleven-year-old Suzy Smith joins the troll-operated Impossible Postal Express, but she botches her first delivery by stealing a cursed snow globe containing a boy who claims there is a plot to take control of the Union of Impossible Places.

Thirteen-year-old Twig, having always looked and felt different from his woodtroll family, learns that he is adopted and travels out of his Deepwoods home to find the place where he belongs. Young Twig lives in the Deepwoods, among the Woodtrolls, but he isn't one of them. In a brave attempt to find out where he belongs, Twig wanders into the mysterious, dangerous world beyond the deepwoods. He meets a collection of odd companions, such as his wise...

Years after her sisters venture Outside and vanish in a snow squall, thirteen-year-old Tag sets out to rescue the lost Youngers, accompanied by an unlikely crew--Boots, who can climb anything; Ant, who will eat anything; and Ren, who will say anything. Includes author's note.

"A young troll named Hawthorn is stolen from Fairyland by the Golden Wind, and becomes a changeling in our world, a place no less bizarre than Fairyland in his eyes"--

Rollo the troll is tired of chores, but after spending time on the tundra with various animal families, from owls to moose, he realizes that he wants to be home for Christmas even if that means behaving himself.