Lyra and Will, the two ordinary children whose extraordinary adventures began in The Golden Compass and continued in The Subtle Knife, are in unspeakable danger. With help from the armored bear Iorek Byrnison and two tiny Gallivespian spies, they must journey to a gray-lit world where no living soul has ever gone. All the while, Dr. Mary Malone builds a maagnificent amber spyglass. An assassin hunts her down. And Lord Asriel, with troops of shining angels, fights his mighty rebellion, a battle of strange allies and shocking sacrifices. As war rages and dust drains from the sky, the fate of the living and the dead finally comes to depend on two children and the simple truth of one simple story. The Amber Spyglass reveals that story, bringing Philip Pullman's His Dark Materials to an astonishing conclusion.