This story is a sequel to A Stampede to Remember
Thorax had become the new king of the Changelings when they joined Equestria. Queen Chrysalis had sworn revenge and was forced into exile. She is now gathering her allies from the other Hives in an attempt to retake her throne and finally end the conflict with a victory for the Changelings. One Changeling named Sclerite, was not around when Thorax came to power and would play a major role in the upcoming war.
This is an alternate story to "Hidden in Plain Sight" You don't have to read the previous stories to understand this one.