After the defeat of Tirek and the map appearing within the castle, Twilight got curious if there was more to the tree than meets the eye. After doing some research the only one left to ask is Princess Celestia herself.
On Twilights request the Princess meets up with her and tells her a story from long before Equestrias founding, from even before the events that led to Hearth's Warming Eve ...
The [Alternate Universe]-Tag is present, because things might not fit into canon completely (now or more on a later date). Still, I tried to keep as close to canon as I could.
CoverArt used with permission by SailorTrekkie92 [ Source ];
Tree of Harmony Vector by Serenawyr [ Source ]