The first novel in the His Dark Materials trilogy follows Lyra Belacqua, a brave and curious girl living in a world where human souls exist outside the body as animal companions called dæmons. When children begin disappearing and a mysterious substance known as Dust becomes the center of a vast conspiracy, Lyra embarks on a dangerous journey across the Arctic. The novel blends adventure, philosophy, magic, science, and epic fantasy into a richly imagined coming-of-age story.