Sometimes curiosity is simply that. Sometimes it's something much deeper, almost like the pony is searching for more than just knowledge... like answers.
It's Twilight Sparkle's first night as a princess, and she can't sleep. Her thoughts are haunted by a question that will not let her rest. A question that only Celestia can answer.
To keep her job at the library, Twilight Sparkle must face her greatest challege, one which will push her very sanity to the breaking point. No, not the Cosmic Horror stirring in the dreamvoid between universes, worse: Library Patrons.
This is the story of seven friends and the years that tried to keep them apart. Princess Twilight Sparkle has loved more and lost more than anypony else. At the end of everything she remembers all she learned from all the times she said goodbye.
Three weeks after Twilight's coronation, Fluttershy sits down for her daily hour of tea, when she receives a spontaneous visit from the least spontaneous mare she knows. Just what is on Twilight's mind?