One Girl Will Change Worlds.
Lyra Is An Orphan Who Lives In A Parallel Universe In Which Science Theology And Magic Are Entwined. Lyra's Search For A Kidnapped Friend Uncovers A Sinister Plot Involving Stolen Children And Turns Into A Quest To Understand A Mysterious Phenomenon Called Dust. She Is Later Joined On Her Journey By Will A Boy Who Possesses A Knife That Can Cut Windows Between Worlds. As Lyra Learns The Truth About Her Parents And Her Prophesied Destiny The Two Young People Are Caught Up In A War Against Celestial Powers That Ranges Across Many Worlds.
