The Golden Scarab talisman in Elden Ring is behind the Cleanrot Knights of the Abandoned Cave in Caelid, a dungeon that's one of the stickiest in Elden Ring as a whole, flooded with gross, disease-ridden poisons and substances. It's worth it though, as the Golden Scarab is a Talisman with a very important effect: it boosts the speed at which you earn Runes, a massive benefit to farming such things.
To help you get it yourself, here's how to access the location of the Golden Scarab in Elden Ring, along with a full walkthrough for the Abandoned Cave that leads to it. Once you've reached the gross world of Caelid, you can head straight for his vital location and slay the Cleanrot Knights (if you can).
