Riordan, Rick.

The Heroes of Olympus #3: The mark of Athena / Rick Riordan. - First U.S. paperback edition. - 586 pages, 64 unnumbered pages : illustrations ; 20 cm. - The heroes of Olympus ; book three. .

"Inside never-before-seen short story. Annabeth Chase meets Sadie Kane"--Cover. Includes author's short story: The staff of Serapis : an Annabeth Chase/Sadie Kane adventure.

"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"--

ISBN: 9781423142003

Subjects--Topical Terms:
Mythology, Roman
Mythology, Greek
Giants
Camps
Hera (Greek deity)
Gaia (Greek deity)