Near the end of many a heroic venture or quest a brave band of adventurers upon return will find it necessary to seek out a sage, a wisened person, looking for the answer to a riddle, to decipher a map, or to unlock a geas or curse placed on one of their own. The strangest of quests, those touched by the madness of the fae, the eldritch influence of the outsiders and abominations, and those tainted by the hellish realms, are best met by the mysterious sage known only as Mugwort.
In the dank,dense areas of the world where the vigorous and the decaying are intertwined and indivisable, lives the wise bagabond. But getting him to impart his knowledge is quite a chore.
The players encounter an organization dedicated to toppling tyrannous governments; both good and evil. Secretly, they are led by the twin daughters of Lucifer / The Lightbringer / (Generic Adversary God). These daughters have an appropriate set of divine or demonic powers, but strictly speaking, are not evil.