Mages Malevolent Mansion

From publisher blurb: A 5th Edition Mini-Dungeon for four to six characters of levels 16 For the better part of a millennium, the usual crew of harmless magnificent mansion servants performed their duties faithfully. Suffering from a dramatically extended lifespan, these 100 conjured creatures have become far less harmless over time. They’ve learned to reshape their corporeal forms into monstrous configurations, and are prepared to forcefully demand their workers’ rights.