Silksong’s Alchemist’s Assistant Quest: Plasmium Locations and Plasmium Vial Reward — Hollow Knight: Silksong's Alchemist's Assistant quest turns...Silksong’s Alchemist’s Assistant Quest: Plasmium Locations and Plasmium Vial Reward — Hollow Knight: Silksong's Alchemist's Assistant quest turns Wormways plasmium into the lifesaving Plasmium Vial. dealnesthq.com Show more