Centuries ago, the four deities – Kishar, Kotaresh, Lyth, and Asar-Segt – threatened to drown the world in a flood of saltwater to punish the living for their impiety.

The oracles and witches of your realm struck a desperate bargain with the gods, however, and convinced them to spare the world. In exchange, the mortal tribes were bound to demonstrate their faith once each generation by sending their most courageous and adroit warriors to the Crucible, a ziggurat in the lowest valley of the land.

Your tribes stand waiting in fear and hope. Prove the world is worthy

(A fourthcore dungeon crawl in the tradition of Tomb of Horrors, by Sersa V. see http://slamdancr.com/wp/2011/01/what-is-fourthcore/ for info on the philosophy behind this)