This internationally acclaimed winner of the Finlandia Award is “a brilliant and dark parable about the fluid boundaries between human and animal” (The Boston Globe).
 
Angel, a young photographer, comes home from a night of carousing to find a group of drunken teenagers in the courtyard of his apartment building, taunting a wounded, helpless young troll. He takes it in, not suspecting the dramatic consequences...

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

Mercedes Lackey's magical Elemental Masters series recasts familiar fairy tales in a richly-imagined alternate Victorian world
Ninette Dupond was a dancer with the Paris Opera Ballet. She had been very lucky—if she had not been pretty, and a natural dancer, she could only have become what her mother had been: a washerwoman.
 
But Ninette’s good luck ended the day that the lead dancer sprained her ankle and Ninette...

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

On the way to a party, a boy must outwit a troll to cross a bridge

Shaman gives up his life as a troll and joins a human family.

As her senior year of high school starts, Laurel is just beginning to adjust to Tamani's absence when he suddenly reappears, telling her he must guard her against the returning threat of the trolls that pose a danger both to her and to Avalon

Poppy and Branch discover that they are but one of six different Trolls tribes scattered over six different lands and devoted to six different kinds of music: Funk, Country, Techno, Classical, Pop and Rock. A member of hard-rock royalty, Queen Barb, aided by her father King Thrash, wants to destroy all other kinds of music to let rock reign supreme. With the fate of the world at stake, Poppy and Branch set out to visit all the other lands to unify...

"Having freed the trolls of dismal swamp from the tyranny of Stygius Rex, the reluctant troll leader, Rollo, has left the swamp on a bittersweet mission...Ludicra, the troll who now finds Rollo worthy of her attention, is distraught over his absence and convinced he needs her help..."