The Scent of Incense is a short side-quest you can complete during the first Witcher 2 Assassins of Kings Enhanced Edition chapter.
The action of this quest takes place in Flotsam, where you must find a specific quest-giver named Vencel Pugg.
The scholar can be located on the citys docks, next to a wall. If you get near him, he whispers and asks you to talk to him.
After the conversation, The Scent of Incense quest will be added to your journal.
“Do you like the scent of incense? Then listen/ Geralt met a scholar at the harbor. The man claimed that one of the local shopkeepers sold incense producing poisonous smoke.
He could not prove the murderous trade without producing a recipe for the incense. Geralt promised to get the man a recipe for a tidy sum of Orens.”
When to start
When you reach the harbor, while exploring Flotsam.
After you activate the quest, go to the town square and you should see a group of women, near the scaffold. Talk to Matilda Szabo who will ask you to shut down the shop in front of them. At this point you will activate a new side-quest named Little Shop of Dreams.
Complete it immediately.
If you finish the Little Shop of Dreams quest you will retrieve a formula. Take it back to Vencel Pugg. The events of the current side-quest depend on how you play the Little Shop of Dreams.
When you bring back the formula obtained from Vilmos, Vencel will ask you to accompany him to his laboratory so he can test it. Find him near the eastern gate and accept his proposal to blindfold you.
When you enter the laboratory, you will see the results of the previous quest.
If you successfully intimidated Vilmos, you will get a reward, if not, you will have to fight your way out.
At the end of your conversation with Vencel, make sure you agree to cooperate with him in the future.
As soon as you exit the laboratory, the quest ends.