Spirit Merchant (technically traded). Each of these marks the exact location of an outer biome boss spawn. Each scanner recipe uses a resource unique to the boss's biome. Either found on the ground or as a mob drop. Which isn't to say there aren't genuinely spooky areas and scary https://o-aprendiz54208.newsbloger.com/30386374/um-imparcial-view-of-core-keeper-gameplay