Celestia has been invited to mediate peace talks between the Griffons and Zebras. The meeting place is on the border of the Zebras and Griffons, far away from Equestria. With Equestrian citizens coming closer and closer to becoming collateral damage from the war, Celestia must go to try and get peace from the nations. Her sister Luna has been back from the moon for over a year now. Surely she can handle the kingdom for a week.

Right?