For ages untold, a gemstone monolith has pierced the heart of the Echo Wood. Now, as civilization intrudes upon this enigmatic splinter, a strange life once again stirs in the depths—one with ties to undying evils and a might beyond time itself. The promise of wealth and power calls to glory-seekers from across the Inner Sea region, tempting them into a labyrinth of monster-haunted vaults, defiled tombs, arcane laboratories, and worse, as they seek to unveil the secrets locked below the legendary Emerald Spire.

Reavers of Harkenwold pits the heroes against the Iron Circle, a company of cruel mercenaries that has seized control of the small land of Harkenwold. In this adventure, the heroes become daring rebels and lead the folk of Harkenwold against their oppressors.