From publisher blurb:
Before the Scoured Lands surrounding the City of Skull were picked through and emptied of treasure at the behest of the White Temple, it was considered an unnamed landscape filled with the ruins of three fallen civilizations: the Dwarves, the Orcs, and the Elves. Each civilization was felled through war with the Elves, for when the Elves had vanquished the Dwarves and the Orcs, they turned their wars upon themselves until all that remained was the City of Skull - alone against the darkness. The sun was banished, and now the only light that reaches the land is from the three moons.
The Guild of Black & Gold, eager to expand their influence within the City of Skull, has responded to a plea for assistance by their allies among the caravaners and traders who make infrequent treks through the Salt Waste to Skull from distant and strange lands. A den of Raiders has taken hold of a section of one of the trails several days out from Skull and are looting any caravan that does not ride with a prohibitive number of guards and mercenaries. The party is asked to find the Raider den and remove the problem.
Are your players prepared to search the Salt Waste for the hidden Raider Camp?