When Twilight is given a journal from her Teacher, Princess Celestia, she never expected to learn the past of Queen of the Changelings before she was even a queen.
Twilight has been thinking far too much lately, and Fluttershy and Pinkie are going to help. A story of mental illnesses and psychoanalysis, with a bit of friendship thrown in.
"The stars have faded. The moon has grown distant from me. Sister, what has happened during the thousand years of my absence? What has happened to my night?"