At the beginning of the trilogy, Lord Asriel visits Jordan College where he is almost poisoned by the Master. Asriel is saved by Lyra, who has secretly been watching the Master pour the poison into Lord Asriel's wine glass. Asriel is giving a Lecture to the Fellows of Jordan College hoping to raise money for an expedition. In the lecture he uses photograms of Dust and a city in the sky, as well as a severed head that he says is Stanislaus Grumman's. He travels to Svalbard but is imprisoned and guarded by the bear warriors known as the panserbjørne, led by Iofur Raknison. This action has been ordered by the General Oblation Board, which is headed by his ex-lover, Marisa Coulter. He receives hospitable treatment, and waits for a child on whom to perform intercision (a process to detach a child's dæmon that often results in the child's death). He is hoping to open a window in the aurora using the energy generated by the intercision in order to travel into a different universe. Eventually a child arrives, Roger Parslow, unwittingly brought by Lyra.