An old mare remembers her friends fondly, as she thinks back on how it came to this.
With apologies to Ernest Hemingway and Styx!

After weeks of studying, preparation, and experimentation, Twilight Sparkle fails to complete a spell. Ashamed of what she's done she runs away and is forced to come to terms with herself, and learns a secret that can help her cope with her problems.

Thank you to Sablestripe for saving me the embarrassment of trying to draw my own cover!