The Subtle Knife (His Dark Materials 2) - Philip Pullman

The second volume in Philip Pullman's groundbreaking HIS DARK MATERIALS trilogy, now a thrilling, critically acclaimed BBC/HBO series. 

"What is he? A friend, or an enemy?"

"He is a murderer." Will has just killed a man. He's on the run. His escape will take him far beyond his own world, to the eerie disquiet of a deserted city, and to a girl, Lyra.

Her fate is strangely linked to his own, and together they must find the most powerful weapon in all the worlds...