The Hidden Oracle
ByRick Riordan
2016 • 410 Readers • 384 pages • 3.9
The House of Hades
ByRick Riordan,Nick Chamian
2013 • 568 Readers • 608 pages • 4.3
The Lost Hero
ByRick Riordan
2010 • 851 Readers • 596 pages • 4
The Mark of Athena
ByRick Riordan
2012 • 625 Readers • 608 pages • 4.2
The Son of Neptune
ByRick Riordan
2010 • 655 Readers • 544 pages • 4.2