The Amber Spyglass is the concluding book in the His Dark Materials trilogy. It follows on from The Subtle Knife and Northern Lights (also known as The Golden Compass) and takes place in many more universes. The book deals with love between the protagonists, Lyra Silvertongue and Will Parry as well as some hard decisions they have to make. One major new universe added to the book is one with strange creatures called Mulefa and Doctor Mary Malone's development in her beliefs towards what Dust is and how the world works.
