Prince FitzChivalry Farseer's daughter Bee was violently abducted from Withywoods by Servants of the Four in their search for the Unexpected Son, foretold to wield great power. With Fitz in pursuit, the Servants fled through a Skill-pillar, leaving no trace. It seems certain that they and their young hostage have perished in the Skill-river. Clerres, where White Prophets were trained by the Servants to set the world on a better path, has been corrupted by greed. Fitz is determined to reach the city and take vengeance on the Four, not only for the loss of Bee but also for their torture of the Fool. Accompanied by FitzVigilant, son of the assassin Chade, Chade's protege Spark and the stableboy Perseverance, Bee's only friend, their journey will take them from the Elderling city of Kelsingra, down the perilous Rain Wild River, and on to the Pirate Isles. Their mission for revenge will become a voyage of discovery, as well as of reunions, transformations and heartrending shocks. Startling answers to old mysteries are revealed. What became of the liveships Paragon and Vivacia and their crews?