When a disaster causes Princess Twilight Sparkle to evacuate most of Ponyville, the inhabitants find themselves in a much different place than expected. The people of Kansas are a little surprised about it too.
Secrets come to light when a human appears, and the Equestrians learn of a world under siege – by none other than themselves. Caught in a web that binds the great and humble alike, can Lyra find what part she’ll play in the fate of three realms?