The Peculiar Alchemist of Alpentor (5e)

From the back of the book: In the quiet Alpentor Valley, a strange dwarven alchemist named Embric peddles even stranger wares--and surprises are in store for those who imbibe his goods! In this 4th-level adventure, the heroes must venture into the alchemist's peculiar mountainside lab, investigate the oddities, and discover the source of Embric's bizarre dealings before it's too late!