In Assassin's Creed Valhalla, you can find interesting locations where your character will be able to consume not entirely legal substances. In places with mushrooms, you can stop and let the hero take a bite of visions and health problems. On this page of our guide you will find out where to find Fly Agaric in the Glowecestrescire region.
You will find flies to the east.
To complete this side activity you need to change the color of the fires where the statues with black banner are located. When you mark all of them correctly, a passage will open.