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.

Taking place a generation after The Talismans of Shannara, The Voyage of the Jerle Shannara: Ilse Witch opens with the discovery of a body. Only two people understand its significance: Walker Boh, the last of the Druids and a familiar character to Shannara fans, and the Ilse Witch, a beautiful but dark young woman who wields a potent magic. Thus begins the voyage of the Jerle Shannara in a race to uncover the mystery, which of course includes an unusual cast of characters.

Legend has it that Paxon Leah is descended from the royals and warriors who once ruled the Highlands and waged war with magical weapons. But those kings, queens, and heroes are long gone, and there is nothing enchanted about the antique sword that hangs above Paxon’s fireplace. Running his family’s modest shipping business, Paxon leads a quiet life - until extraordinary circumstances overturn his simple world…and rewrite his destiny.

Sinnissippi Park, in Hopewell, Illinois, has long hidden a mysterious evil, locked away from humankind by powers greater than most could even imagine. But now the malevolent creatures that normally skulk in the shadows of the park grow bolder, and old secrets hint at a violent explosion. The brewing conflict draws John Ross to Hopewell. A Knight of the Word, Ross is plagued by nightmares that tell him someone evil is coming to unleash an ancient horror upon the world. 

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.