In The Subtle Knife, the second installment of Philip Pullman's His Dark Materials trilogy, Lyra Belacqua crosses into a strange new world where she meets Will Parry, a boy fleeing danger in our own universe. Together they discover Cittagazze, a city haunted by Spectres that prey on adults. Will becomes the bearer of the subtle knife—a weapon that can cut through anything, even windows between worlds. As Lyra pursues her mission to uncover the truth about Dust, Will searches for his missing father. Their intertwined destinies draw them deeper into a cosmic conflict that threatens all worlds.
