The mark of Athena - Riordan (London, EN.: Puffin Book, 2012)
"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
"Thorndike Press Large Print The Literacy Bridge"--Copyright p.
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Keywords: Mythology, Roman -- -- Fiction; Mythology, Greek -- -- Fiction; Giants -- -- Fiction; Camps -- -- Fiction; Hera (Greek deity) -- -- Fiction; Gaia (Greek deity) -- -- Fiction