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The truth lies beyond the world we know.
Lyra is an orphan who lives in a parallel universe in which science, theology and magic are entwined. Her search for a kidnapped friend uncovers a sinister plot involving stolen children and turns into a quest to understand a mysterious phenomenon called Dust. She is later joined on her journey by Will, a boy who possesses a knife that can cut windows between worlds. As she learns the truth about her parents and her prophesied destiny, the two young people are caught up in a war against celestial powers that ranges across many worlds.
Held captive by Mrs Coulter, a dreaming Lyra finds herself in a mysterious place with someone familiar - Roger. Will continues his quest to find Lyra, meeting unexpected allies along the way.
Will tries to save Lyra from her mother and the Magisterium, but it comes at a great personal cost. Asriel’s plans change when unexpected angelic visitors crash into his republic.
Lyra and Will seek help from Iorek to fix the Subtle Knife before reaching an agreement to go to the Land of the Dead together. Mrs Coulter goes on trial in Asriel’s republic.
As Lyra and Will head to the Land of the Dead, Mrs Coulter tries to thwart MacPhail. Mary is buoyed by the unexpected appearance of a very unusual creature.
In the world of the mulefa, Mary makes a heartbreaking discovery. Lyra and Will journey through the Land of the Dead in search of Roger.
As Metatron's abyss rips through the worlds, sucking Dust into its depths, Lyra and Will attempt to lead the ghosts out of the Land of the Dead.
As the Clouded Mountain approaches, Mrs Coulter, Asriel and his council discuss their battle strategy. In the Land of the Dead, Lyra and Will deliberate their next move.
Lyra and Will reunite with Mary and hear a story that changes everything. Now they must decide what they are willing to sacrifice if they are to save the worlds.
