The witch queen, Serafina Pekkala, tells Lyra the missing children are in an experimental station called Bolvangar. At a northern port, Lyra is befriended by a Texan aeronaut named Lee Scoresby. He advises her to hire him and his friend Iorek Byrnison, an armoured bear that Lee has come to rescue. Once a prince of the armoured bears, Iorek is now exiled in shame, the local townspeople having tricked him out of his armour. Lyra uses the alethiometer to locate Iorek's armour. After recovering it, Iorek joins the Gyptian trek northward, along with Scoresby.