There is a war, possibly the biggest war yet. The Greek and the Romans are on one side, and the Norse and the Egyptian are on the other side. Percy and Annabeth have got a prophecy that there will be a child of Pontus-the sea primordial-will help them win this war. Will the child of Pontus help them win this war and show true loyalty? Will the child of Pontus betray the Greeks and help The Norse? Read more to find out.
4 parts