Witch Wraith is the final novel in The Dark Legacy of Shannara series. It chronicles the attempts of Aphenglow Elessedil and Arlingfant Elessedil to repair a breach in the Forbidding, and the attempt of Railing Ohmsford to bring back his relative Grianne Ohmsford, the former Ilse Witch, to release his brother Redden from the Forbidding and destroy the Straken Lord Tael Riverine.
Railing and Mirai Leah keep heading north in search of Grianne Ohmsford in hope that they can save Redden from the Straken Lord. But when they do get her, she is the Ilse witch, she is powerful, and she is determined to kill the Straken Lord but only to take his place. Arlingfant Elessedil is captured by Edinja Orle in Arishaig and the Ellcrys seed is still in the hands of the farmers, far away. Cymrian and Aphenglow are in Arishaig looking for Arling. Just then, the Straken Lord and his gigantic army leaves the Forbidding and launches an assault on the city. The Elven King Emperowen Elessedil is killed by a spy on the order of Edinja Orle, and Phaedon, the King's idiot son, takes his place.