You've found an "interesting" book recently. You don't know what it is, or why it was hidden in the back of Twilight's library, but you feel so compelled to read it. And keep reading it. And keep reading it...
The newly cutie-marked Apple Bloom and Sweetie Belle depart for greener pastures, seeking out their fortunes and futures, leaving Scootaloo behind. But what happens to ponies that don't get their cutie marks?
When tragedy strikes, everyone has a different way of reacting and dealing with their grief. But Cadance is all too aware that, as a princess, her duties must come before her own personal feelings of sadness.