Imagine a world where you had until your sixteenth birthday to find the person you were destined to live your life with. You were born with a watch, counting down the years, days, months, hours. Now imagine finding out that person was the one you hated most. Percy struggles to keep his big secret to himself through the next three months, keeping up appearances of hating Jason Grace while slowly falling in love with him. Will Jason love him back once they meet face to face? After they meet, how will Jason handle the fact that the boy he's hated since his Freshman year is suddenly the boy he's destined to love?