The Heroes of Olympus
by
Rick Riordan
2013, Puffin
The Son of Neptune
by
Rick Riordan
2011, Disney-Hyperion Books
Heroes of Olympus
by
Rick Riordan
2014, Puffin
The Blood of Olympus
by
Rick Riordan
2014, Disney-Hyperion Books
Heroes of Olympus
by
Rick Riordan
2017, Puffin