The third book in the mega-bestselling Heroes of Olympus series by Rick Riordan, now with fresh and exciting new cover art by graphic novelist Nilah Magruder.In The Son of Neptune, Percy, Hazel, and Frank met in Camp Jupiter, the Roman equivalent of Camp Halfblood, and traveled to the land beyond the gods to complete a dangerous quest. The third book in the Heroes of Olympus series will unite them with Jason, Piper, and Leo. But they number only six--who will complete the Prophecy of Seven? The Greek and Roman demigods will have to cooperate in order to defeat the giants released by the Earth Mother, Gaea. Then they will have to sail together to the ancient land to find the Doors of Death. What exactly are the Doors of Death? Much of the prophecy remains a mystery... With old friends and new friends joining forces, a marvelous ship, fearsome foes, and an exotic setting, The Mark of Athenais another unforgettable adventure by master storyteller Rick Riordan.

• We started tracking this book on April 12, 2012.
• This book was $9.99 when we started tracking it.
• The price of this book has changed 109 times in the past 4,868 days.
• The current price of this book is $0.99 last checked 19 hours ago.
• The lowest price to date was $0.99 last reached on August 9, 2025.
• This book has been $0.99 5 times since we started tracking it.
• The highest price to date was $10.00 last reached on January 15, 2014.
• This book has been $10.00 8 times since we started tracking it.
• This book is currently at its lowest price since we started tracking it.

• Children's eBooksAction & AdventureFantasy & Magic
• Children's eBooksFairy Tales, Folk Tales & MythsGreek & Roman

• Publication Date: October 2, 2012
• Text-to-Speech: Disabled
• Lending: Disabled
• Print Length: 604 Pages
• File Size: 97 KB