A troll tries to prevent Trigg from crossing the bridge on the way to school only to be outwitted by the boy's riddles.

A boy from Finnmark and his ice bear help scare away some hungry trolls so that Kyri and her father can enjoy their Christmas Eve meal.

A new America called Valhalla grows restless under the controlling long arm of the Datum government, while all of the Long Earth is infused by the song of the trolls who are starting to react to humanity's thoughtless exploitation, bringing humankind to the brink of war.

When the Trolls move next door to the Priddles, both families find the other strange, which causes many misunderstandings.

When Wendy Everly was six years old her mother was convinced she was a monster and tried to kill her, and eleven years later Wendy learns that her mother was right and that she is actually a changeling troll, who, at the age of seventeen, must be returned to her rightful home.

After Jack becomes apprenticed to a Druid bard, he and his little sister Lucy are captured by Viking Berserkers and taken to the home of King Ivar the Boneless and his half-troll queen, leading Jack to undertake a vital quest to Jotunheim, home of th

When Treva investigates the disappearance of her family's Christmas things, she finds two mischievous trolls who have never had a Christmas of their own.

One week after their eleventh birthday, the Fowl twins--scientist Myles, and Beckett, the force of nature--are left in the care of house security (NANNI) for a single night. In that time they befriend a troll who has clawed his way through the earth's crust to the surface. Unfortunately for the troll, he is being chased by a nefarious nobleman and an interrogating nun, who both need the magical creature for their own gain, as well as a fairy-in-training...

Jethro and Joel, a two-headed troll, goes on a rampage through the countryside.