Tracking down the blue mushroom for Karatom in Clair Obscur: Expedition 33 is a quest you can undertake once you arrive in the Gestral Village. This little Gestral inventor is trying to create the ultimate Sakapatate—you might remember fighting these patchwork sentinels a little while earlier in the Ancient Sanctuary. The problem is that Karatom needs more potent gunpowder that can only be refined from blue mushrooms.
You'll have to locate this mushroom if you want to complete the quest and help birth his creation. One thing worth noting is that this quest becomes inaccessible after you complete the Stone Wave Cliffs area as part of the main story, so make sure to finish it before then if you want the rewards. Now, here's where to get that mushroom.
