Princess Celestia always knew that Twilight Sparkle was destined for great things, but she never revealed the source of that knowledge, not even to those closest to her. When the day of Twilight's true destiny finally arrives, can Celestia fulfill an ancient promise to save Equestia's past, present, and future, even it means saying goodbye to Twilight forever? How can Celestia refuse her mother's last wish?

Art by the inimitable Harwick

The Fillypine Islands; a tropical paradise, just off Equestria's southern shores. Widely regarded across the land for its crystal white beaches, friendly locals, stunning natural beauty, rich wildlife, and its plethora of ruins from the mysterious ancient Mustangs. Twilight Sparkle and her friends are taking a much-needed break, but each has their own agenda, and she quickly finds herself visiting the Mustang ruins with just Rainbow Dash and her delusions of Daring-Do-esque adventure for company.

(This story uses the prompt "The mane six go on a vacation".)