The Tower of Nero
Rick Riordan
The Trials of Apollo (5)
The Legend of Sigurd and Gudrún
J. R. R. Tolkien
The Lightning Thief
Percy Jackson and the Olympians (1)
The Silmarillion
J.R.R. Tolkien
The Demigod Files
Percy Jackson and the Olympians (4.5)
The Lost Hero
The Heroes of Olympus (1)
The Son of Neptune
The Heroes of Olympus (2)
The Serpent's Shadow
The Kane Chronicles (3)
The Mark of Athena
The Heroes of Olympus (4)