Once there was a bridge and a terrible and VERY hungry troll lived underneath it. When the three Billy Goats Gruff decide to clip-clop across the bridge to get to the grassy ridge, the troll is already imagining all the way to prepare a delicious goat dinner. But the troll underestimates those seemingly sweet but oh-so-savvy goats!

A troll named Little Rock is learning to be a helper, and Anna, Elsa, and Kristoff are here to help him.

"A rhyming twist on the classic tale in which the goats help fix what is making the troll so grumpy in order to cross the bridge. Incorporates Spanish words and includes a glossary" --

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...

Everything changes for San Bernardino teenage suburbanite Jim Sturges when a 45-year old mystery resurfaces, threatening the lives of everyone in his seemingly sleepy town. Soon Jim has to team up with a band of unlikely (and some un-human) heroes to battle the monsters he never knew existed.

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.

Three clever billy goats find themselves trapped in a video game, confronting the Hillside Castle run by a monster troll--and they have to use their new superpowers to get past the castle to the green field of grass, and lunch. Written in graphic-novel format.

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.