How far is one willing to go for the ones they love?

Everypony was so happy. Who really wouldn't be during the great Summer Sun Celebration? What started off as a wonderful get together to celebrate the raising of the sun and the return of one moon princess to her older sisters side, quickly turned tragic when the Princess of Friendship herself found the princesses had gone missing again, leaving the sun and the moon standing still in the sky once more. A lone voice tells her that it knows where they are, and is more than willing to give them back to Equestria so they can control the Sun and Moon again ... For a price that is.

Twenty-four prices to be exact.

With the clock on Equestria ticking and a heavy burden on their shoulders, Twilight and the rest of the Elements of Harmony must set off to the Forbidden Lands to save Celestia and Luna before their world can turn into chaos. But just how much were they willing to sacrifice in order to do that? ...