On the day of the Friendship Games, the veil between two worlds is pierced. The magic of Equestria seeps through the barrier to permeate the world of humanity. Entities begin to come into existence. Lore and legend are gaining flesh, bone, and blood, yielding things both wondrous and horrible. Magic is powerful, but a limited resource. If the world at large discovers its existence, Equestria will become a target.

Thus, seven friends agree to keep the secret, but some things will not be hidden away.