

The stakes have never been higher. If Percy Jackson and Annabeth fail in their quest, there'll be hell on Earth. Literally.
Wandering the deadly realm of Tartarus, every step leads them further into danger. And, if by some miracle they do make it to the Doors of Death, there's a legion of bloodthirsty monsters waiting for them.
Meanwhile, Hazel and the crew of the Argo II have a to stop a war or save their friends. Whichever road they take one thing is certain - in the Underworld, evil is inescapable.
BOOK 1

BOOK 10

BOOK 11

BOOK 12

BOOK 13

BOOK 14

BOOK 15

BOOK 15.5

BOOK 16

BOOK 17

BOOK 18

BOOK 19

BOOK 2

BOOK 20

BOOK 3

BOOK 4

BOOK 4.5

BOOK 5

BOOK 5.1

BOOK 5.2

BOOK 5.2, 5.3, 5.4

BOOK 5.3

BOOK 5.4

BOOK 6

BOOK 7

BOOK 7.5

BOOK 8

BOOK 9

Shelve Demigods and Monsters: Your Favorite Authors on Rick Riordan's Percy Jackson and the Olympians Series

Shelve Demigods of Olympus: An Interactive Adventure

Shelve Percy Jackson & the Olympians: The Ultimate Guide

Shelve Percy Jackson and the Last Olympian

Shelve Percy Jackson's Greek Gods

Shelve Percy Jackson's Greek Heroes

Shelve The Battle of the Labyrinth: The Graphic Novel

Shelve The Lightning Thief: The Graphic Novel

Shelve The Lost Hero: The Graphic Novel

Shelve The Sea of Monsters: The Graphic Novel

Shelve The Son of Neptune: The Graphic Novel

Shelve The Titan's Curse: The Graphic Novel

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