01204cam a2200301 4500 1147885934 TxAuBib ||||||s2012||||||||||||||||||||||||und|u 2012017264 9781423140603 hardback 1423140605 hardback TxAuBib Riordan, Rick. The mark of Athena / Rick Riordan. First edition. New York : Disney Hyperion Books, [2012] ©2012. 586 pages ; 22 cm. heroes of Olympus, The ""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""-- Provided by publisher. Gaia Greek deity Juvenile fiction. Hera Greek deity Juvenile fiction. Camps Juvenile fiction. Giants Juvenile fiction. Mythology, Greek Juvenile fiction. Mythology, Roman Juvenile fiction. The heroes of Olympus.