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.

Lyra and Will find themselves in a strange new place. The Magisterium take action as Mrs Coulter interrogates a suspected heretic witch, and Lee Scoresby embarks on a mission.

Lyra crosses into Will's world, and they set off to find answers about Dust. Will is shocked to discover he has grandparents, but quickly realises he can’t trust them.

Lyra and Will find allies who can help them in their search for Will’s father. The Magisterium learn something shocking, and Mrs Coulter meets a formidable foe.

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.