Annabeth is afraid. Finally, after six months of searching, she is about to meet Percy again: but to do that, she will have to convince the suspicious Romans at Camp Jupiter that she has turned to peace. Not an easy task, considering that she arrives at the camp, along with her friends Jason, Piper and Leo, in a flying warship with a dragon's head. And that's not all. In Annabeth's pocket she holds a gift from her Olympian mother, who commanded her: follow the sign of Athena. How could you please her mother without igniting a fratricidal war between the Greek camp and the Roman camp? Will Percy stand by her side, or will he prefer his new life in the Roman camp? And what role will the members play in the fulfillment of the Shivah prophecy, which deals with breaking vows and fighting at the gates of death? The vengeful goddess Gaia has not yet risen from her sleep, but her giant sons continue to gain strength. Gaia get up get up. All she needs is the blood of two halves. Writer Rick Reardon is already a thing. Children become addicted to the adventures, tension and humor in his books, and along the way learn about the mythologies of Greece, Rome and Egypt. Rearden has already announced that the next mythology that will receive his literary treatment is Norse mythology. House of Hades, the fourth book in the Heroes of Olympus series, is expected to be published in the fall of 2013.