The subtle knife /
Philip Pullman.
- 1st American ed.
- New York : Yearling c1997.
- 426 p. ; 20 cm.
- His dark materials ; bk. 2 .
Sequel to: The golden compass.
As the boundaries between worlds begin to dissolve, Lyra and her daemon help Will Parry in his search for his father and for a powerful, magical knife.