Includes short stories: Percy Jackson and the sword of Hades, The Crown of Ptolemy.
Summary:
Greek and Roman demigods from the Prophecy of Seven must work together to seal the Doors of Death, and help Percy and Annabeth escape the Underworld in the process.
Series:
The heroes of Olympus ; book four Riordan, Rick. Heroes of Olympus ; bk. 4.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.