The son of Neptune /
Rick Riordan.
- New York : Disney/Hyperion Books, c2011.
- 1 online resource (521 p.) : maps
- The heroes of Olympus ; 2 .
Demigod Percy Jackson, still with no memory, and his new friends from Camp Jupiter, Hazel and Frank, go on a quest to free Death, but their bigger task is to unite the Greek and Roman camps so that the Prophecy of Seven can be fulfilled.