Equestria has thrived for millions of years. When actions taken by a certain princess puts the Earth in danger of destruction, it’ll take a plethora of races to figure out a solution for the madness to be put to an end. No matter how much one race might hate another.
In the possible last days of the world you’ve come to know, would there be enough magic to stop a princess from sacrificing her home, her subjects, just because daddy told her so?