On Twilight's first birthday since ascending to alicorn-hood, her former enemy, the spirit of chaos himself, drops by to give her a gift fit for a princess.

When Twilight finally works up the nerve to open it, what she finds inside lives up to Discord's grandiose promises… technically. But that's only part of the problem.

Twilight Sparkle has never let a book get the better of her, and she's not about to start now, but has Equestria's foremost bibliophile finally met her match?