Orphan Lyra Belacqua's world is turned upside-down by her long-absent uncle's return from the north, while the glamorous Mrs Coulter visits Jordan College with a proposition.

Separated from her friends, Lyra must use all of her methods of deception to thwart a formidable foe. Meanwhile, Mrs Coulter plots her next move.

As the Magisterium closes in, Lyra learns more about Asriel’s rebellion. But her assistance to him comes at great personal cost.

As all paths converge on Cittàgazze, Lee is determined to fulfil his quest, whatever the cost. Mrs Coulter’s question is answered, and Will takes on his father’s mantle.

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.