The Corrosion, a plague of unparalleled proportions, has already ravaged the Astryan continent. On the other side of the world, the continent of Avaris and its nomadic peoples-so far spared from the horrors spawned by this abomination-now stand on the brink of extinction. Eline, an itinerant Soul Whisperer, relentlessly battles the force that turns the once-thriving fauna, flora and humans of this lush land into grotesque abominations. Following a mysterious encounter, a dark power awakens within her, one that may hold the key to ending this apocalypse: the ability to control the Corrosion within her own body.