Subtle Knife

Will twelve years old nad he's just killed a man. Now he's on his own, on the run, determined to discover the truth about his father's disapperance.

Then Will steps htrough a windows in the air into another world, and finds himself with a companion-a strange, savage little girl called Lyra. Like Will, she has a mission which she intends to carry out at all costs.

But the world of Cittagazze is astange and unsettling place. Deadly, soul-eating Spectres stalk its streets,while high above,the wingbeats of distant angels sound against the sky. And in the mysterious Torre degli Angeli lurls Cittagazze's most important secret- an object which people from many worlds would kill to possess...