The Potion Seller is a quest in No Rest for the Wicked that is entirely missable if you don’t discover this hidden cave, but the rewards are worth it. If you’re struggling to get through this quest, we’re here to help.No Rest for the Wicked: The Potion Seller quest guideInside Iona’s Cavern in the first region of the game, you can speak to Markos who asks you to find Iona’s Bloom deep within the cave. This quest involves some tricky platforming and tough enemies to defeat, so here’s how to complete The Potion Seller quest in No Rest for the Wicked.How to find Iona’s CavernScreenshots: PC InvasionYou can initiate The Potion Seller quest by finding the ladder south of the fire pit with the two NPCs sitting by it. Down the ladder is the glowing entrance to Iona’s Cavern. The red circle denotes where the ladder should be.You’ll unlock this area after you’ve opened the large gate and discovered Filmore&#8217…