Despite denouncing her former life as the dreaded Ilse Witch, Grianne Ohmsford still has bitter enemies within the Third Druid Council. Among the highest ranks lurk those who cannot forget her reign of terror, who covet her seat of power, and who will stop at nothing to see her deposed, or destroyed. Even Grianne's few allies know of the lots against her. But they could never anticipate her sudden, ominous disappearance in the dead of the night without a trace.

Despite denouncing her former life as the dreaded Ilse Witch, Grianne Ohmsford still has bitter enemies within the Third Druid Council. Among the highest ranks lurk those who cannot forget her reign of terror, who covet her seat of power, and who will stop at nothing to see her deposed - or destroyed. Even Grianne's few allies know of the lots against her. But they could never anticipate her sudden, ominous disappearance in the dead of the night without a trace.

When the world was young, and its name was Faerie, the power of magic ruled - and the Elfstones warded the race of Elves and their lands, keeping evil at bay. But when an Elven girl fell hopelessly in love with a Darkling boy of the Void, he carried away more than her heart. Thousands of years later, tumultuous times are upon the world now known as the Four Lands. Users of magic are in conflict with proponents of science. Elves have distanced their society from the other races. The Druid order is threatened.

In this prequel to The Sword of Shannara, in which many details of the Four Lands' history are revealed, Druids, horrified by the misuse of magic, have eschewed it in favor of science. But Bremen the Druid studies magic, and becomes an outcast on its account. Bremen discovers that an invincible army of trolls are fast conquering all that lay to their south. Before them come the Nazgul-like Skull Bearers, disfigured and transformed Druids who have fallen prey to the dark arts.

Harrowing confrontations with the merciless Ilse Witch and the monstrous Antrax have taken their toll on the intrepid heroes aboard the airship Jerle Shannara. But their darkest adversary now snaps at their heels, in the form of the Morgawr - feeder upon the souls of his enemies and centuries-old sorcerer of unimaginable might with a fleet of airships and a crew of walking dead men at his command. The Morgawr’s goal is twofold: Find and control the fabled ancient books of magic, and destroy the dark disciple who betrayed him - the Ilse Witch.