Ponies are vanishing. Not even the Princesses can find where they're off to.

And now, there are reports and letters written from the past. Ponies saying goodbye to their loved ones before they're even born.

Ponies who died the day they vanished.

For an evening with his guests, The Prince of the Shadows has the best idea for a game.

When he is found dead, however, the six guests have to find out who killed him if they are to escape the Canterlot Prisons.
But, as the evening continues, even the Hired Hooves are found dead.

Whodunit? Where? With what weapon?

It's been three years since Princess Luna returned from her imprisonment from the moon, and she and her sister are ready to once again take up the Fall Equinox once more.

Although, with the new creeds and laws, will Equestria ever be the same?