Aria Blaze finds a book that will change everything. But is it truly for the better, or for the worse?

Sweetie Belle finds herself in a dream-like universe, perfect enough to be imperfect, to find somepony that she truly does miss.

Cadance gets lost and in trouble searching for her love, Shining Armor. Twilight Sparkle is motivated to find them both, and bring them back to safety - before the fate of the Crystal Empire falls into the wrong hooves.