In
fairy tales, Trolls live in the deep forests or in
caves in the mountains, far away from the people.
The Trolls also tend to be a bit stupid, so the hero
of the story can easily outsmart them (and save the
princess, the kingdom, or just himself).
One
way of getting rid of a Troll is exposing it to
sunlight. Daylight will make the Troll explode,
BANG, and gone is the problem. Alternatively, the
sun rays will turn the Troll into stone. Trolls
often guard a dazzling treasure which the hero can
bring back to his family after defeating the Trolls.