With his unlimited imagination and thrilling storytelling, Garth Nix has created a character and a world that become even more compelling with each audiobook. As Arthur gets closer to the heart of his quest, the suspense and mystery grow more and more intense . . . This is the third audiobook in the thrilling, triumphantly imaginative Keys to the Kingdom series by Garth Nix, the bestselling author of Sabriel, Lirael, and Abhorsen. From the Cassette edition.