Selome Hailu SPOILER ALERT: This story contains spoilers for “We Visit the Garden Gnome Emporium,” Episode 3 of “Percy Jackson and the Olympians.” For fans of Rick Riordan‘s “Percy Jackson and the Olympians” books, Medusa represents one of Percy’s first big victories: After being tricked into spending time with “Aunty Em,” he beheads the snake-haired woman, and her cursed, dead eyeballs are later used to turn another enemy into stone. But for those with a deeper knowledge of Greek mythology, and for many women, Medusa is a symbol of something darker. In the original myth, Medusa is a human woman who takes a vow of celibacy out of devotion to Athena, the goddess of wisdom.