from Norwegian Folk Tales Troll Stories illustrated by the great Norwegian painter/illustrator: Kittelsen -- worth looking into if not familiar with. And especially if you are a Troll fan.
Theodor Kittelsen, Kjerringa ved peisen
Bullfinch on Frosty Twig -Theodor Severin Kittelsen
Theodor Kittelsen - On a way to the Feast in the Trollcastle, 1904
Theodor Kittelsen - Parental Pride by Aeron Alfrey, via Flickr
Theodor Kittelsen - The Sea Troll (detail), 1887 by Aeron Alfrey, via Flickr
Theodor Kittelsen - From 'The Golden Bird, 1883 by Aeron Alfrey, via Flickr
Theodor Kittelsen - Per Gynt in the Hall of the Mountain King, 1913