What begins as a simple experiment in spellcasting quickly spirals into obsession as a student of magic discovers an ancient legend hidden within Mage Meadowbrook's greatest enchantment.
The princesses gave their magic to Twilight to prevent Tirek from stealing it. As a result, they end up stuck in Tartarus. The fact that things manage to go downhill here says a lot about the wonders of family.
When a barrage of musical numbers hits Ponyville, Lyra's fear of their mind-altering properties strains her relationship with Bon Bon to its breaking point.