Arthur Penhaligon has wrested five of the Keys from the Trustees of the Will. But gaining the Sixth Key poses a greater challenge than any before. Superior Saturday is not just one of the Trustees, she is also the oldest Denizen and the most powerful sorcerer within the House. She has tens of thousands of socerers at her command, and she has been preparing all along for the Will's escape and the activities of the Rightful Heir. Everything is part of a greater plan she's been hatching for ten thousand years. As Saturday's schemes become evident, Arthur is beset on all sides. Nothing is eroding the House, and only the power of the Keys can hold back the tide of destruction. His mother is still missing. His home city is under attack. His allies are unreliable. He can't even get into the Upper House and even if he does, finding the Sixth Part of the Will and the Sixth Key might not be enough to stop Saturday's ultimate bid for power.
