As a purebred delver, Ryson Acumen instinctively senses changes in the land of Uton. The alterations, however, are not limited to the delver's realm. In the breeding grounds of Demonsheol, the master of all demons has forged an altered existence, and the transformation threatens the standing of demon overlords. Primevals once obedient to their master begin to consider thoughts of rebellion.

When Ryson learns a demon taskmaster has arrived in Uton, he sets out to find the beast, but his pursuit is delayed by a crisis with even greater consequences. In Dark Spruce Forest, a seemingly innocent experiment turns into tragedy. The elf camp is thrown into chaos, and the wizard Jure falls into a state of absolute despair. The delver must help Jure, stabilize the elf camp, and deal with a renegade primeval.

When Ryson finally faces the demon, he discovers that far more is at stake than any territorial claim. The delver must find a way to pacify the renegade and overcome the lord of all demons. He struggles in a vicious battle only to realize that certain decisions are beyond his influence. In hoping to save the land, as well as his own conscience, he discovers the one possible solution is also a path to deliverance.