From the back cover:
"Peril in the Pomarj
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."