The Mark Of Athena follows the stories of the Greek demigods: Annabeth Chase, Leo Valdez, Piper McLean, and Percy Jackson; and the Roman demigods Jason Grace, Hazel Levesque, and Frank Zhang. It is the first novel told from the perspective each of the seven demigods mentioned in the second Great Prophecy. The 7 venture to the waking place of the earth goddess Gaea. They have many obstacles as they try to get the statue of Athena. The daughter of Athena, Annabeth, is able to get the statue but her and her boyfriend Percy fall into the Tartarus were all the monsters come from.