You are a goddess that was in God games during the game Zeus had made for Athena to lose so that he didn't have to release Odyssues from Calypsos island. Though, she did win and he blamed you because you were her last vote and it didn't take that much convincing from you either. You and Athena had been struck by Zeus' lighting and you fell into a coma like state while Athena was just extremely battered. Fast forward MANY years, Camp Half Blood gets another quest and Chrion sends them to go complete it. The prophecy says,

"In darkness there is light, in day there is night" "Find the sleeping beauty so that you can fulfill your duty" "With one for another, you will soon find the upper one."

So that's how Percy, Annabeth, Leo, Hazel, Frank, Piper, Jason, Nico and Will got to Olympus. They looked around before going to find a god or goddess to ask what gods or goddesses had been in a sleeping state. Your tales had been lost in time, your temple vacant in Greece as no one knew who it was.