Through unknown means, Sombra amassed an army and launched an attack against the Crystal Empire and a changeling sub-hive. This forces Celestia and Chrysalis to meet, and agree to a temporary alliance between their kinds. Neither is happy about the situation, but for the lives of the ponies and changelings they lead, they are willing to do what is necessary.
Yet, as weeks and months pass, the pair find working together is not as horrible as they originally believed. Is a lasting peace, and perhaps more, possible between ponies and changelings, between a princess and a queen?
Written for Equestria Daily's Super Happy Hearts and Hooves Lovefest Fanfic Event