From publisher blurb: In the dark inner sanctum of the Cult of the Black Cloud, the cultists breed monsters which they believe their holy figure – the Black Cloud or the Lord of Storms – will use to dominate the world. A band of adventurers seeks to survive the dangers of the abyss and end the evil machinations of worshipers of the doomsday in this dungeon crawl for Fifth Edition. Abyss of the Black Cloud is an adventure for 3-5 player characters of levels 6-8, though it best played with 4 PCs of level 7.