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. This page of our guide describes where the fly agarics can be found in the Rygjafylke region.
The puzzle with the statues
You will find the mushrooms on the island, right in the middle of the Rygjafylke region.
You'll find them immediately, as they are surrounded by several rocks and two statues stand right next to them. Take a look at them, they are very important. With them, you will solve the puzzle that will appear in front of you, right after consuming hallucinogenic substances.
Your task is simply to run into three portals. However, you must do this in the right order. It will be best if you look at the note, which lies right next to the statues. It will make everything easier.
The first portal is the one next to the statue of Ragnarok. Run into it without any hesitation.
The hallucination continues. Find the portal next the statue of Freya. It is a buirdly woman who is holding hands.
The last portal and the end of your fun. On the right hand side you will the portal "guarded" by Glaosheimr. Just run into the portal, and you'll sober up and get to the world of the living.