"The Greek and Roman demigods will have to cooperate in order to defeat the giants released by the Earth Mother, Gaea. Then they will have to sail together to the ancient land--Greece itself--to find the Doors of Death."--Publisher. Annabeth is terrified. Just when she's about to be reunited with Percy -- after six months of being apart, thanks to Hera -- it looks like Camp Jupiter is preparing for war. As Annabeth and her friends Jason, Piper, and...