The Dark Moon & Sun Demigod

Ace is normal. Completely. Until the Fates decide to make her life harder. It all starts when Medusa comes and breaks the window of the shop Ace is at. Then, she goes to a place called Camp Half-Blood. There she hones her skills as a demigod. After she is claimed, she must take a quest, with the help of new friends, to save the world.

And, who, exactly, are her godly parents? (Did you notice the S?)