The Attack on Camp Jupiter was a major battle in the Second Giant War, led by the giant Polybotes. A Giant Army victory would have been assured had it not been for the success of Frank Zhang's quest to rescue the god Thanatos and recover the Imperial gold weapons lost thirty years previously, and for the intervention of the Amazons, led by Queen Hylla Avila Ramírez-Arellano. In the end, the Greek demigod Percy Jackson worked with the Roman god Terminus to destroy Polybotes until his regeneration a month later. Following his victory, Percy was raised on a shield and named praetor of the Twelfth Legion, replacing the absentee Jason Grace.