Harassing a Troll is a Secondary quest in The Witcher 3. To finish it, you’ll need to defend a rock troll from some nekkers.
|Reward:||Random small rewards (herbs, materials)|
Name: Boris The Troll
You’ll find the troll in the area north-west of the Inn at the Crossroads, surrounded by a bunch of nekkers.
Following contains quest spoilers. You’ve been warned
Defend the troll
Kill the nekkers.