FIRST SERIES, BOOK ONE: After the giant war, Percy Jackson son of Poseidon disappeared, again. Only this time it wasn't because of Queen Hera. What happens when Percy comes back to camp a year later? What has happened to the young son of Poseidon in that year? And will there be another war? Find out in Perseus Jackson and the Element Wolves. I don't own Percy Jackson. Or any of the music. Completed and Edited. 100K Views: October 2, 2017.