The Son of Neptune is another great book added into the series "The Heroes of Olympus". In this story, the all-time famous demigod to both good and evil, Percy Jackson is back! He was sent to a Roman camp, specifically Camp Jupiter with his memory erased. He doesn't know what happened, but for all he knows, monsters can't die. Unless Death (Thanatos) is released from his Prison, people and monster will not die, and even come back to the living world and try to cause trouble. Gaea and her minions captured Thanatos, and decided to attack the camp, knowing that monsters won't die until Death is released. Percy Jackson decides to go on a quest without much support, with 2 other friends he made during his limited time at Camp Jupiter. Those two friends were Frank Zhang and Hazel Levesque, will play a crucial role in saving the world in other books in the series. Whether through magical spears and magical abilities, the group of 3 endures many troubles to release death..