At Celestia's call, Twilight meets someone who is a strange enigma. This Stranger teaches Twilight about the Founding Laws. This is to be there first of many meetings, each one revealing a hard choice to be made. (dark tag, for a brief discription of a war torn Equestria.

This is to serve as a bit of a primer for the main series. It's not a necessary read, but it will give a bit of understanding of the larger setting the series is placed in.