Far below the world of light, a cavity of unspeakable evil spreads an ancient hatred through the darkness. From their city of Zirnakaynin the dark elves rule an empire of lies and dark magic. Already their foul ambitions grasp for the world above, threatening a cataclysm beyond reckoning and the advent of a second Age of Darkness. Only by taking on the disguises of dark elves themselves and invading the capital of the drow can the PCs discover their enemies' true faces and put an end to their world-shattering plot. But what hope for survival can natives of the surface have in a merciless realm of endless night?