When Camp Half-Blood, the only safe haven for
demigods, nears the verge of being overrun by
mythological monsters, Percy and his friends must
venture to find his best friend Grover.
Rick Riordan is
also the author of the New York Times #1
best-selling Percy Jackson and the Olympians series:
Book One: The Lightning Thief; Book Two: The Sea of
Monsters; Book Three: The Titan's Curse; Book Four:
The Battle of the Labyrinth; and Book Five: The Last
Olympian. He lives in San Antonio, Texas, with his
wife and two sons.