||Arthur Penhaligan is on his sixth day of perilous adventures as the heir to the Kingdom, and Saturday promises to be more difficult than any of the Morrow Days. Fighting Superior Saturday, whose thousands of sorcerers are rapidly destroying the House from the bottom up, will require Arthur to be even craftier than ever before in his search for the sixth part of the Will. At the same time, a terrible threat is afoot at home, and without Arthur's intervention, everyone will die. Suzy Blue, Dame Primus, and many other favorite characters appear in new and interesting ways. This is the sixth compelling book in the bestselling Keys to the Kingdom series by that fabulous Australian Garth Nix.