When Farseeker Guildmistress Elspeth Gordie sets out from Obernewtyn to travel to Sutrium at the end of wintertime, she quickly learns that not everyone welcomes the changes brought about by the rebellion. Captured by an old and vicious enemy, she is drawn deep into the heart of the Herder Faction, where she learns of a terrible plot to destroy the west coast. To stop it, Elspeth must risk everything, knowing that if she dies, she will never complete her quest to find the weaponmachines that destroyed the Beforetime. But if she succeeds, her journey will lead her to the last of the signs left for her by the seer Kasanda... Librarian's note: Penguin Australia is publishing the Obernewtyn Chronicles in six books, and The Stone Key is book five. In the United States and Canada this series is published by Random House in eight books; this Penguin Australia book is split into two parts and published as Wavesong (Book Five) and The Stone Key (Book Six).