It begins the night a dragon falls on an off-duty adventurer. Fortunately, it's a small dragon. Unfortunately, it's connected to a big problem. Make that a huge problem: The survival of a well-known wizard belonging to the Circle of Five is at stake, but that's not the worst of it. Evil forces are attempting to infiltrate a secret fortress and unlock vast magical powers, but that's not the worst, either.

The bad news? Some old enemies of civilization in the Flanaess have returned, and they've discovered a mutual interest in world domination. They have a plan to bring it about. And their plan is already underway when the little dragon appears.

Worse, on this particular nights, there's no one who can stop them - no one but any heroes who can start this adventure and survive through its out-of-this-world climax. And they have no choice. It they fail, the City of Greyhawk and all the civilized lands of the Flanaess will get to meet some remarkable legendary figures.

Then civilization will die. Screaming.

It has been a decade since the feared yellow sails of the Slavelords appeared in harbors of Wild Coast towns - ten years since friends, family, and loved ones were carried off in shackles to the inhuman lands of the Pomarj.

Turrosh Mak, a half-orc warlord, has unified the bickering humanoid tribes into a rapacious nation! With sword and flame, tooth and claw, he led his conquering horde north, till over half of the Wild Coast fell beneath his iron gauntlet.

Now the ships with the yellow sails have reappeared on the waters of the Woolly Bay. They have even reached the shores of the Nyr Dyv, the "lake of unknown depths," striking suddenly and carrying off every able-bodied survivor. And just as suddenly they vanish without a trace. The scourge of the Slavelords has returned.

This book features a new chapter in the Slavelords saga, and includes detailed descriptions of the cities and lands of the Flanaess, from the City of Dyvers to the dark peaks of the Drachensgrab Mountains deep in the Pomarj.