The Golden Compass recap

Lyra Belacqua, an orphan raised at Jordan College in a world where souls take the form of animal daemons, is secretly given a truth-telling alethiometer and swept into a struggle over a mysterious substance called Dust. After the charming Mrs. Coulter is exposed as a leader of the child-stealing Gobblers, Lyra flees and joins the gyptians journeying north to rescue captured children, among them her friend Roger. She gains an armoured bear, Iorek Byrnison, an aeronaut, Lee Scoresby, and the aid of witches. At the northern station of Bolvangar she uncovers the horror of intercision, the cutting of children from their daemons, narrowly escapes it herself, and destroys the station. Reaching the bears' kingdom, she outwits their king so Iorek can claim the throne, then finds her father, Lord Asriel. Learning that Asriel and Coulter are her parents, and convinced the Church is wrong about Dust, she watches Asriel sacrifice Roger to open a bridge between worlds, then crosses that bridge into a new world to seek the truth herself.

Lyra Belacqua is an orphaned girl raised among the Scholars of Jordan College in Oxford, in a world where each person's soul walks beside them as an animal daemon. Hidden in a forbidden room, she watches the Master of the college try to poison her formidable uncle, Lord Asriel, then listens as Asriel presents images of a mysterious substance called Dust and of a city seen in the sky, and wins backing for an expedition to the far North. Meanwhile children across the country are being stolen by shadowy figures nicknamed the Gobblers. Before Asriel departs, and before Lyra herself is sent away with a visitor, the Master secretly gives her a rare golden instrument, an alethiometer that answers any question truthfully to one who can read it, and warns her to keep it hidden. Lyra, curious and headstrong, has little idea how much will come to depend on her, on her loyal shape-shifting daemon Pantalaimon, and on the device now in her keeping.

A glamorous, captivating woman, Mrs. Coulter, takes Lyra from the college to live with her in London, dazzling her with attention and the promise of adventure. But Lyra soon discovers that Mrs. Coulter is bound up with the very people stealing children, and she flees into the city. She is rescued by the gyptians, a boat-dwelling people who are also losing children to the Gobblers. Their leaders, John Faa and the wise old Farder Coram, take her in and reveal the truth of her parentage: Lord Asriel is her father and Mrs. Coulter her mother. Lyra's dearest friend, the kitchen boy Roger, has been seized by the Gobblers, and she resolves to save him. She joins the gyptian expedition sailing north to find the stolen children, and with Farder Coram's help she begins to learn how to read the alethiometer.

Traveling north with the gyptians, Lyra gathers powerful allies. She frees a disgraced armoured bear, Iorek Byrnison, by helping him recover his stolen armour, and he becomes her fierce protector; she also gains the aeronaut Lee Scoresby and the distant watchfulness of the witches. The alethiometer guides and warns her again and again. Along the way she learns more about Dust and about the terrible thing being done to the captured children at a remote northern station called Bolvangar, run by the child-stealers under the authority of the Church. After a stretch of danger and separation from her friends, Lyra is finally brought to Bolvangar itself, taken in among the very people she came to stop, and begins to uncover the horror at the station's heart.

At Bolvangar, Lyra discovers that the station exists to perform intercision, cutting children away from their daemons in a monstrous experiment tied to the study of Dust. She herself is nearly severed on the silver guillotine and is saved at the last moment, learning that Mrs. Coulter is the station's guiding force. Lyra rallies the captive children, and with the timely arrival of the gyptian rescuers and the witch-queen Serafina Pekkala's clan, she destroys Bolvangar and frees the prisoners, including her friend Roger. Escaping the ruin, she is carried onward by Lee Scoresby's balloon and by the witches toward the far North, where Lord Asriel is held, as the true scale of the conflict over Dust comes into view.

Separated from her friends and falling from the sky, Lyra comes to the bears' kingdom of Svalbard, where she is taken captive. She outwits the vain bear-king Iofur Raknison, tricking him into single combat with Iorek Byrnison; Iorek kills Iofur, becomes king, and carries Lyra on to find Lord Asriel. But Asriel is not glad to see his daughter; he is dismayed only because she has brought a child with her. Lyra realizes too late what he intends. Using the vast energy released by cutting a child from its daemon, Asriel severs Lyra's friend Roger from his own daemon, killing him, to tear open a bridge between worlds in the sky. Mrs. Coulter arrives but refuses to follow Asriel. Believing the Church is wrong about Dust and determined to understand it herself, Lyra steps through the shimmering bridge with Pantalaimon, out of her world and into another.

The story ends on the mountaintop where Lord Asriel has built an experiment to breach the boundary between worlds. Lyra arrives believing she is bringing him the alethiometer he needs, only to learn that what he wants is a child, not the instrument. He seizes her friend Roger and severs him from his daemon; the vast energy of that killing tears a bridge across the sky into another universe, and Roger dies. Mrs. Coulter, who has followed, is offered the chance to go with Asriel but chooses to stay behind. Asriel crosses into the new world alone. Lyra, grieving Roger and sickened by what her parents are, reasons that if the Church calls Dust a mark of sin, then Dust may in truth be something good and worth understanding. Rather than turn back, she and Pantalaimon walk up into the sky after the bridge, out of their own world entirely, resolved to find the source of Dust before Asriel does. Iorek Byrnison now rules the armoured bears of Svalbard, the gyptians and her surviving friends are left behind, and the wider war over Dust and free will is only beginning.