This story is a sequel to Creature of the Night: Episode One-The Night Guardian
It's been a few weeks since Creature was discovered by Twilight Sparkle, however all is not well.
Twilight has gotten a letter from Princess Celestia asking to meet up with Creature immediately. Creature complies, as ghosts of the past begin to emerge, leaving Twilight to perform a desperate act and re-ask an important question.
"Who was Purity Heart?"