They still regret what they did, letting their curiosity get the better of them. But back then, they did not truly understand the consequences that would follow over the years. For that period of time, it began with only a mysterious shop, a childish dare, and a strange old woman who seemed to know more then she let out.

"It's been a long time since I have seen an Old Soul..." (Pinkie/Flutter/Rarity friendship, 30minute prompt story)