|The Mark of Athena|
|Publication date||October 2, 2012|
| Preceded by|
The Son of Neptune
| Followed by|
The House of Hades
The third book in the Heroes of Olympus series has finally been revealed!
Old friends along with new friends will come to together to uncover the mysteries of the next great Prophecy; The Prophecy of Seven.
Seven half-bloods shall answer the call.
To storm or fire, the world must fall.
An oath to keep with a final breath,
And foes bear arms to the Doors of Death.
Percy will finally be reunited with Annabeth, Greek and Roman will have to unite to save the world. Jason, Piper, Leo, Percy, Hazel, Frank, and Annabeth have to rise to the challenge. Will they be able to though?
Annabeth receives an important assignment from her mother Athena. She was told to avenge her mom. Will she be up to the challenge, or will her greatest fear overcome her?
Percy was told that Annabeth would cause problems for him and for the quest. Will she, and if she does, how bad will the problems that she causes be?
Will Annabeth be a burden to the other six demigods on the quest? And will there be a battle between Jason and Percy?
Stay tuned! More questions will be answered in the third installment of the Heroes of Olympus series.