after hera combines the greek and roman camps, the seven - percy jackson, annabeth chase, jason grace, piper mclean, leo valdez, hazel levesque and frank zhang - begin their quest on the argo II to defeat gaia and her children, the giants.
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.
