Bastion is a short secondary quest in Skellige isles in which you’ll have to

Berengar’s Blade is a short secondary quest in Kaer Morhen in which you’ll have to finish a job that was started by a good friend of Vesemir.

Greenhouse Effect is a secondary quest in Kaer Morhen in which you’ll have to activate a greenhouse in the mountains in order to get some rare herbs and ingredients.

The Witchers’ Forge is a side quest in Kaer Morhen in which you’ll search for an old forge that contains some powerful weapons and armor.

Blood on the Battlefield is the final quest of the second chapter in the Witcher 3. In it you’ll have to make some decisions that will have a major impact on Ciri’s fate at the end of the game.