Subtle Knife (His Dark Materials, Book 2), The by Philip Pullman; 2001. Hardcover (Ch-FIC)

In this stunning sequel to The Golden Compass, the intrepid Lyra finds herself in a shimmering, haunted otherworld—Cittagazze, where soul-eating Specters stalk the streets and wingbeats of distant angels sound against the sky. But she is not without allies: twelve-year-old Will Parry, fleeing for his life after taking another's, has also stumbled into this strange new realm.On a perilous journey from world to world, Lyra and Will uncover a deadly secret: an object of extraordinary and devastating power. And with every step, they move closer to an even greater threat--and the shattering truth of their own destiny.