Feburary 14th, just a few months before the war of Conquest. Lighting discovers Applejack is missing from her post on this day and goes on a hunt for her. Everypony around him tells him to stay away and leave Applejack alone on this day of all days. What is important about this day and why is Applejack gone? Where did she run to?

The answers lie at the base of two tree entwined with each other and a rock that reads "PB + BM" and in the distant past.

A fall of Starfleet side story.