Lost in a new world, Lyra finds Willa boy on the run, a murderera worthy and welcome ally. For this is a world where soul-eating Specters stalk the streets and witches share the skies with troops of angels.
Each is searchingLyra for the meaning of Dark Matter, Will for his missing fatherbut what they find instead is a deadly secret, a knife of untold power. And neither Lyra nor Will suspects how tightly their lives, their loves, their destinies are bound together...until they are split apart.