The apothecary mentioned that his master, Taigen, was working on something special before he died at the Conclave.
Alternatively, you can start the quest by approaching the house directly and finding the hidden notes.
The notes are found inside a house north of Haven, on a desk in the northeast corner of the shack. When approaching the house, you will be introduced to the Search function of the game, which reveals hidden objects. Return to Adan to complete the quest.
- 100 XP
Instantly restores some mana.