| #2 |  The Sea of Monsters
| 3.98 | 1,518 reads | |
| #3 |  The Lightning Thief
| 4.05 | 2,279 reads | |
| #4 |  The Titan's Curse
| 4.15 | 1,374 reads | |
| #5 |  The Battle of the Labyrinth
| 4.2 | 1,292 reads | |
| #6 |  The Last Olympian
| 4.32 | 1,264 reads | |
| #7 |  The Lost Hero
| 4.04 | 876 reads | |
| #8 |  The Son of Neptune
| 4.2 | 735 reads |