TY  - BOOK
AU  - Nix Garth 
AU  - Garth Nix 
TI  - The violet keystone / 
T2  - The seventh tower
AV  - PZ7.N647  
U1  - 823.92  
PY  - 2008///
CY  - New York : 
PB  - Scholastic, 
N1  - O; 840; Lexile
N2  - Tal and Milla are only one step from death and evil is only one step from triumph. An old war is revived and the key to everything is the Seventh Tower.
ER  -