A Guardian's Tale is a side-story written by Pallydan; it follows the adventures of Aria, a guard during wartime in Canterlot, who found herself waking up in Stable 63. It can be read on fimfiction.net.
Aria always idolized her aunt, Princess Luna. So when the war began to ravage Equestria she answered the call to arms and joined the Royal Guard, specifically Princess Luna's personal guard. But on her first day as her aunt's protector, a zebra plot is discovered, and Aria sacrifices her life to save Canterlot. Or did she? Waking up in Stable 63, Aria is confronted with the horrifying reality that all she ever knew and loved died in an explosion of hellfire two hundred years ago. Now she must leave Stable 63 and venture into ruins of Trottingham so she can try to save the failing Stable, discover why she is still alive, and unravel the secrets of a mysterious prophecy given to her by an equally mysterious group of gods. (Or is she just going crazy?)