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.

Brave explorers led by the last Druid, Walker Boh, traveled across unknown seas in search of an elusive magic. But now it seems that Walker and his team were lured there for sinister, unforeseen purposes. As the crew aboard the airship Jerle Shannara is being attacked by evil forces, the Druid’s protégé, Bek Rowe, and his companions are being pursued by the mysterious Ilse Witch. Meanwhile, Walker is alone, caught in a dark maze beneath the ruined city of Castledown.

Since the death of the Druid Allanon, the Four Lands have changed profoundly, with magic strictly forbidden in the Southland, now under totalitarian rule. Yet Par still has some power of the Wishsong. A message from Allanon arrives: venture to the dread Hadeshorn, along with the other Scions of Shannara. For in the future, all life in the Four Lands will be destroyed. To prevent this terrible fate, Allanon commands Par to recover the long-lost Sword of Shannara, a task that is next to impossible.