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. Guide contains image walkthrough and starting NPC location.

Forefathers Eve is a secondary quest available in Velen. You can do it after completing Secondary Quest: A Towerful of Mice, but before Main Quest: Family Matters. You can also go to Keira Metz’s cottage and start it there (if you completed Main Quest: Family Matters, and then Secondary Quest: A Towerful of Mice).The pellar will automatically walk up to you. Guide contains image walkthrough and starting NPC location.

At the Mercy of Strangers is a Secondary quest in The Witcher 3. In it, you get a chance to save a Temerian deserter from certain death. Guide contains image walkthrough and starting NPC location.

Highway Robbery is a secondary quest available in Velen, near the Boatmakers’ Hut.

Bitter Harvest is a Secondary quest in The Witcher 3. In it, you’ll protect a group of scavengers from undead monsters. It is also part of a group of quests that will grant you access to Redanian territory. Everything starts with “Thou shalt not pass” and continues with “Fake Papers” quests. Guide contains image walkthrough and starting NPC location.

Deadly Crossing is a secondary quest that is available as you explore Velen and Novigrad during Act I.

Defender of the Faith is a secondary quest in the Witcher 3 that is available as you explore Velen.
Guide contains image walkthrough and starting NPC location.

Face Me if You Dare! is a secondary quest that is available in Velen. You will find yourself the unwilling recipient of a challenge from a delusional man. Guide contains image walkthrough and starting NPC location.

Funeral Pyres is a secondary quest that involves burning the corpses of fallen soldiers. It starts in Velen a bit west of the village of Mulbrydale. Guide contains image walkthrough and starting NPC location.

Fake Papers is a secondary quest in The Witcher 3, in which you can obtain a pass that lets you through the Redanian checkpoints on the Pontar river. It will offer you to do the Bitter Harvest quest in order to get the pass cheaper. Guide contains image walkthrough and starting NPC location.