"What do you–" Mrs. Cake was suddenly interrupted by the sight of a mint green unicorn, Lyra Heartstrings, outside approaching the entrance to Sugarcube Corner. But what stood out the most was that she wasn't simply trotting, or bouncing, as she was often seen doing. She was riding on a strange, two-wheeled machine. She also seemed to lose control of it for a moment and crashed face-first into the glass door. 