Long ago, two sisters clashed. Night and day they were, but there was another present at their battle. A young colt, heir to night, Tried to no avail to stop the sister's conflict and disappeared in the crossfire.

A thousand years later and the ponies of equestria are hunting down the last of the changelings. Their genocide, led by the elements of harmony, have distroied hive after hive unable to find the one that attacked them years earlier. Finally they arive at the last one to not hear a sound and a lone figure aproch them, and it refused them entrance.