On the eve of the Day of Reaping, the start of the Equestrian Harvest, it is traditional that a legend be told over supper: the legend of how the traditions surrounding the Day of Reaping came to be. It is a story of love, ambition, and vengeance.

Long before Equestria, a grand Unicorn King maintains a splendid garden. On one of his travels he brings a scorpion back to live within it. That scorpion, resentful of being removed from her home, sets out to have her revenge.