The war with the orcs has reached its peak, and Aderyn must use every Warmaster skill she has to defeat their violent, relentless onslaught. But when a former enemy appears with new information about the Fated One quest, Aderyn's loyalties are tested: keep her promise to lead the human armies, or travel deep into the Blighted Range to find and destroy the orcs' stronghold of Charnel Keep?

When events take the choice out of Aderyn's hands, she and her team must tackle the greatest challenge they've faced so far. Accompanied by new companions she can't trust, the increasingly personal guidance of the system that governs her world may be all that protects her from betrayal and death.