Harry Potter and the Half-Blood Prince
J. K. Rowling
Harry Potter (6)
Into the Labyrinth
Margaret Weis & Tracy Hickman
The Death Gate Cycle (6)
To Clear Away the Shadows (RCN Series Book 13)
David Drake
RCN (13)
The Majat Testing
Anna Kashina
The Majat Code (0.50)
The Dread Hammer (Stories of the Puzzle Lands - Book 1)
Linda Nagata
Stories of the Puzzle Lands (1)