Harry Potter and the Half-Blood Prince
J.K. Rowling
Harry Potter (6)
Red Queen
Victoria Aveyard
Red Queen (1)
The Blood of Olympus: The Heroes of Olympus [Book 5]
Rick Riordan
The Heroes of Olympus (5)
Prince Caspian: The Return to Narnia
C. S. Lewis
The Chronicles of Narnia (4)
Spy School
Stuart Gibbs
Spy School (1)
Spy Camp
Spy School (2)
Evil Spy School
Spy School (3)
Spy Ski School
Spy School (4)
Spy School Secret Service
Spy School (5)
Spy School Goes South
Spy School (6)
Spy School British Invasion
Spy School (7)
Spy School Revolution
Spy School (8)
Spy School at Sea
Spy School (9)