As the Town Librarian and student of Princess Celestia, Twilight Sparkle is the epitome of straight-laced, and she's very good at acting the part.

But sometimes she needs to let her hair down. Sometimes the rigours of routine become too much to take, and when that happens Twilight has a place she can go. A place tucked away within Ponyville's back streets, out of sight and out of mind. Unless you're looking for it.

No one would think to find her there – not Miss Goody-Four-Shoes Sparkle – but tonight she's far from the only unexpected visitor.