Will and Lyra, whose fates are bound together by powers beyond their own worlds, have been violently separated. But they must find each other, for ahead of them lies the greatest war that has ever been - and a journey to a dark place from which no one has ever returned...

A breathtaking epic, the award-winning His Dark Materials trilogy spans a multitude of worlds. The second instalment, The Subtle Knife, introduces Will Parry - a young boy in search of his long-lost explorer father. Will's discovery of an extraordinary 'window in the air' near the Oxford ring road leads him out of our world and into the strange and unsettling Citt�gazze. There he meets Lyra, a girl who is herself searching for something: the secret...