La daga
In "The Subtle Knife", Boreal watches Lyra exploring a museum in Will's world and approaches her, appearing to be a kindly old man whose only interest in her is to discuss the skulls. Lyra remembers seeing him previously, but is unsure of his identity. Later, when Lyra is being chased by the men who are after John Parry's notes, Latrom is in a chauffeured limousine and offers her a lift, at which time he steals her alethiometer. Lord Boreal tells them that they must get the Subtle Knife for him from Cittàgazze and he will return to them the alethiometer. After retrieving the knife, Lyra and Will steal back the alethiometer by cutting through from Cittàgazze into Will's world directly within Boreal's study. During this, they overhear a conversation between Coulter and Boreal, where he explains how he was able to set up a life in that world. Later, Boreal attempts to learn what Mary Malone knows about Dust by offering to continue funding her and her colleague's work.