Prologue
At Mount Olympus...
"So you two know that your children are at the age where they have to come to the camp for demigods?" Zeus was asking two gods, Aphrodite and Apollo.
"Yes."
"So, where have you sent them for the last twelve years?"
"To a couple who has taken good care of them."
"And why are they together?"
"Because, the parents think that they are twins."